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Patent No. Title Status Filing Date Grant Date Claims Actions
US20090099640A1 Axial Pullwire Tension Mechanism for Self-Expanding Stent Active / In Force 2007-03-28 — 12 Details
FR2688688A1 Tool for fitting an autoexpansible endoprosthesis for human… Expired / Lapsed 1992-07-13 — 0 Details
GB2264236A Catheter and stent used therewith Expired / Lapsed 1992-02-11 — 8 Details
DE9109097U1 Surgical holding forceps, especially needle and/or thread h… Expired / Lapsed 1991-07-24 — 0 Details
GB2225505A Low noise optoelectronic correlators and mixers Expired / Lapsed 1988-07-07 — 6 Details
DE8711051U1 Biopsy and foreign body forceps Expired / Lapsed 1987-08-13 — 0 Details
GB2206395A Bioprosthetic heart valve Expired / Lapsed 1987-05-14 — 6 Details
GB2108282A Microsurgical laser for repairing body tissue Expired / Lapsed 1982-09-23 — 17 Details
GB2096796A Programming production equipment Expired / Lapsed 1982-03-03 — 9 Details
EP0027704A2 Surgical snare apparatus Expired / Lapsed 1980-10-09 — 25 Details
DE2828322A1 Laser instrument for medical use - comprises long thin tube… Expired / Lapsed 1978-06-28 — 0 Details
DE2818177A1 IMPROVED REAR MIRROR FOR VEHICLES Expired / Lapsed 1978-04-26 — 0 Details
GB1598111A Heart valve prosthesis Expired / Lapsed 1978-02-22 — 18 Details
GB1588933A Dressings for use on a mammalian body and capable of formin… Expired / Lapsed 1977-07-08 — 25 Details
GB1582016A Catheter Expired / Lapsed 1977-05-16 — 12 Details
GB1451418A Gastrointestinal aspirator pump Expired / Lapsed 1974-02-15 — 0 Details
DE2152353A1 BOTTLE CAP Expired / Lapsed 1971-10-21 — 0 Details
DE2127125A1 Urinary tube for the nonoperative removal of stuck urinary … Expired / Lapsed 1971-06-01 — 0 Details
GB1243293A Improvements relating to stent's for heart valves Expired / Lapsed 1969-09-12 — 0 Details
DE1810804A1 Plastic cannula for injection and infusion Expired / Lapsed 1968-11-25 — 0 Details
GB1188110A Electrodes for Microwave Therapy Expired / Lapsed 1967-03-16 — 0 Details
AU5796865A Heart valve Expired / Lapsed 1965-04-22 — 0 Details
GB1022820A Improvements in and relating to fasteners for attaching a c… Expired / Lapsed 1964-11-10 — 0 Details
DE1432241A1 Bottle cap Expired / Lapsed 1964-10-31 — 0 Details
DE1181826B Electro-therapeutic device for analgesic manipulation of th… Expired / Lapsed 1959-11-09 — 0 Details
GB578404A Improvements relating to the preparation of low density mat… Expired / Lapsed 1942-07-02 — 0 Details
US9500000B2 Fencing panel and method of assembly Active / In Force 2014-11-21 2016-11-22 8 Details
US7121382B2 Independently adjustable extensions leveling a ladder Expired / Lapsed 2004-10-07 2006-10-17 2 Details
US6168126B1 Multi-adjustable stand for vehicle electronic components Expired / Lapsed 1999-06-03 2001-01-02 2 Details
US5976174A Medical hole closure device and methods of use Expired / Lapsed 1997-12-15 1999-11-02 23 Details
US5797927A Combined tissue clamping and suturing instrument Expired / Lapsed 1995-09-22 1998-08-25 61 Details
US5720755A Tubular suturing device and methods of use Expired / Lapsed 1995-10-02 1998-02-24 65 Details
US5697978A Prosthetic element for the treatment of inguinal hernias, i… Expired / Lapsed 1995-12-27 1997-12-16 23 Details
US5658272A Surgical instrument support and method of using the same Expired / Lapsed 1995-02-21 1997-08-19 29 Details
US5573540A Apparatus and method for suturing an opening in anatomical … Expired / Lapsed 1994-07-18 1996-11-12 36 Details
US5562688A Apparatus facilitating suturing in laparoscopic surgery Expired / Lapsed 1994-03-25 1996-10-08 25 Details
US5554184A Heart valve Expired / Lapsed 1994-07-27 1996-09-10 20 Details
US5542949A Multifunctional clip applier instrument Expired / Lapsed 1993-09-16 1996-08-06 42 Details
US5496310A Endoscopic cholangiogram guide instrument and method of use Expired / Lapsed 1994-09-30 1996-03-05 26 Details
US5443501A Method for making an artificial heart valve Expired / Lapsed 1993-07-26 1995-08-22 13 Details
US5397351A Prosthetic valve for percutaneous insertion Expired / Lapsed 1991-05-13 1995-03-14 19 Details
US5332402A Percutaneously-inserted cardiac valve Expired / Lapsed 1992-05-12 1994-07-26 11 Details
US5324298A Endoscopic knot pushing instrument Expired / Lapsed 1992-11-03 1994-06-28 18 Details
US5312344A Arterial perfusion cannula for extracorporeal circulation a… Expired / Lapsed 1993-08-09 1994-05-17 6 Details
US5308358A Rigid-shaft surgical instruments that can be disassembled f… Expired / Lapsed 1992-08-25 1994-05-03 8 Details
US5284488A Adjustable devices for the occlusion of cardiac defects Expired / Lapsed 1992-12-23 1994-02-08 8 Details
US5282856A Implantable prosthetic device Expired / Lapsed 1987-12-22 1994-02-01 6 Details
US5261917A Suture tying forceps with a plurality of suture holders and… Expired / Lapsed 1992-02-19 1993-11-16 36 Details
US5222508A Method for suturing punctures of the human body Expired / Lapsed 1992-10-09 1993-06-29 8 Details
US5222962A Endoscopic surgical instrument for releasably grasping a cu… Expired / Lapsed 1992-04-23 1993-06-29 12 Details
US5207706A Method and means for gold-coating implantable intravascular… Expired / Lapsed 1991-01-07 1993-05-04 8 Details
US5181919A Suture ligating device for use with an endoscope Expired / Lapsed 1991-04-23 1993-01-26 2 Details
US5156621A Stentless bioprosthetic cardiac valve Expired / Lapsed 1991-03-15 1992-10-20 8 Details
US5151105A Collapsible vessel sleeve implant Expired / Lapsed 1991-10-07 1992-09-29 32 Details
US5133713A Apparatus of a spinning type of resectoscope for prostatect… Expired / Lapsed 1990-03-30 1992-07-28 19 Details
US5122147A Polyp marking device and method Expired / Lapsed 1991-04-05 1992-06-16 33 Details
US5108430A Implantable reservoir adapted to receive and store structur… Expired / Lapsed 1990-08-23 1992-04-28 3 Details
US5089000A Surgical method and instrument therefor Expired / Lapsed 1990-08-20 1992-02-18 36 Details
US5085635A Valved-tip angiographic catheter Expired / Lapsed 1990-05-18 1992-02-04 8 Details
US5053047A Suture devices particularly useful in endoscopic surgery an… Expired / Lapsed 1989-05-16 1991-10-01 25 Details
US5042707A Intravascular stapler, and method of operating same Expired / Lapsed 1990-10-16 1991-08-27 14 Details
US5009223A Variable axis knee brace Expired / Lapsed 1989-10-02 1991-04-23 17 Details
US5002557A Laparoscopic cannula Expired / Lapsed 1989-04-06 1991-03-26 24 Details
US4997436A Arthroscopic clip insertion tool Expired / Lapsed 1989-12-07 1991-03-05 12 Details
US4994077A Artificial heart valve for implantation in a blood vessel Expired / Lapsed 1989-04-21 1991-02-19 34 Details
US4994066A Prostatic stent Expired / Lapsed 1988-10-07 1991-02-19 14 Details
US4957499A Surgical suturing instrument Expired / Lapsed 1988-06-27 1990-09-18 14 Details
US4946440A Evertible membrane catheter and method of use Expired / Lapsed 1988-10-05 1990-08-07 27 Details
US4944741A Laproscopic instrument with pivotable support arm Expired / Lapsed 1988-12-09 1990-07-31 23 Details
US4911164A Surgical tool and method of use Expired / Lapsed 1988-04-26 1990-03-27 33 Details
US4903697A Cartridge assembly for a surgical stapling instrument Expired / Lapsed 1988-09-01 1990-02-27 5 Details
US4902273A Heart assist device Expired / Lapsed 1988-03-22 1990-02-20 25 Details
US4892095A Endotracheal tube Expired / Lapsed 1987-03-17 1990-01-09 5 Details
US4881550A Medical instrument Expired / Lapsed 1988-02-16 1989-11-21 22 Details
US4865586A Suction stylet for endotracheal intubation Expired / Lapsed 1988-08-29 1989-09-12 2 Details
US4854308A Knee orthosis having offset within hinges and anti-rotation… Expired / Lapsed 1987-12-28 1989-08-08 36 Details
US4846835A Technique for healing lesions in cartilage Expired / Lapsed 1987-06-15 1989-07-11 5 Details
US4846167A Anti-disconnect device Expired / Lapsed 1987-03-30 1989-07-11 12 Details
US4841888A Sewing machine Expired / Lapsed 1987-11-19 1989-06-27 13 Details
US4821741A Barrier contraceptive Expired / Lapsed 1987-10-05 1989-04-18 2 Details
US4813407A Sesamoid bone clamp Expired / Lapsed 1986-07-30 1989-03-21 22 Details
US4790844A Replacement of cardiac valves in heart surgery Expired / Lapsed 1987-01-30 1988-12-13 10 Details
US4787901A Two-way acting valve and cardiac valve prosthesis Expired / Lapsed 1986-12-23 1988-11-29 26 Details
US4781190A Method of arthroscopic repair of a limb joint Expired / Lapsed 1986-04-11 1988-11-01 15 Details
US4778466A Nasal prosthesis Expired / Lapsed 1986-05-27 1988-10-18 11 Details
US4777948A Surgical tool Expired / Lapsed 1984-01-16 1988-10-18 6 Details
US4772288A Method for producing implantable ligament and tendon prosth… Expired / Lapsed 1987-06-15 1988-09-20 17 Details
US4771765A Heart assist device and method of use Expired / Lapsed 1985-12-16 1988-09-20 16 Details
US4754755A Catheter with a rotary blade Expired / Lapsed 1987-07-27 1988-07-05 7 Details
US4744366A Concentric independently inflatable/deflatable multiple dia… Expired / Lapsed 1986-09-10 1988-05-17 59 Details
US4744363A Intra-abdominal organ stabilizer, retractor and tissue mani… Expired / Lapsed 1986-07-07 1988-05-17 22 Details
US4741328A Means for intraaortic assist and method of positioning a ca… Expired / Lapsed 1985-03-14 1988-05-03 29 Details
US4740207A Intralumenal graft Expired / Lapsed 1986-09-10 1988-04-26 10 Details
US4733663A Medical instrument for removing bone Expired / Lapsed 1986-07-02 1988-03-29 10 Details
US4730913A Adjustable mount for lateral rear view mirror Expired / Lapsed 1986-08-04 1988-03-15 5 Details
US4723548A Tendon approximator Expired / Lapsed 1986-12-02 1988-02-09 13 Details
US4710192A Diaphragm and method for occlusion of the descending thorac… Expired / Lapsed 1986-10-17 1987-12-01 11 Details
US4705507A Arterial catheter means Expired / Lapsed 1986-04-28 1987-11-10 2 Details
US4702260A Flexible bronchoscopic needle assembly Expired / Lapsed 1985-04-16 1987-10-27 19 Details
US4700703A Cartridge assembly for a surgical stapling instrument Expired / Lapsed 1986-03-27 1987-10-20 6 Details
US4699404A Flexible PVC coupling--"Flexfix" Expired / Lapsed 1986-09-08 1987-10-13 12 Details
US4696667A Intravascular catheter and method Expired / Lapsed 1986-03-20 1987-09-29 26 Details
US4696294A Contraceptive device and related method Expired / Lapsed 1981-08-31 1987-09-29 24 Details
US4693721A Porous flexible metal fiber material for surgical implantat… Expired / Lapsed 1986-04-22 1987-09-15 11 Details
US4681564A Catheter assembly having balloon extended flow path Expired / Lapsed 1985-10-21 1987-07-21 8 Details
US4676778A Long intestinal catheter with sump Expired / Lapsed 1986-10-27 1987-06-30 13 Details
US4672965A Surgical apparatus Expired / Lapsed 1984-08-16 1987-06-16 25 Details
US4656999A Contact endoscope Expired / Lapsed 1986-04-03 1987-04-14 7 Details
US4649922A Catheter arrangement having a variable diameter tip and spr… Expired / Lapsed 1986-01-23 1987-03-17 3 Details
US4648383A Peroral apparatus for morbid obesity treatment Expired / Lapsed 1985-07-22 1987-03-10 2 Details
US4637380A Surgical wound closures Expired / Lapsed 1985-06-24 1987-01-20 6 Details
US4619261A Hydrostatic pressure device for bleeding control through an… Expired / Lapsed 1984-08-09 1986-10-28 14 Details
US4596246A Method and apparatus for converting patient breathing syste… Expired / Lapsed 1984-02-24 1986-06-24 9 Details
US4593693A Methods and apparatus for anastomosing living vessels Expired / Lapsed 1985-04-26 1986-06-10 26 Details
US4589411A Electrosurgical spark-gap cutting blade Expired / Lapsed 1985-02-08 1986-05-20 14 Details
US4585458A Means and method of implanting bioprosthetics Expired / Lapsed 1983-08-18 1986-04-29 9 Details
US4580563A Arthroscopic surgical instrument and method Expired / Lapsed 1983-10-24 1986-04-08 29 Details
US4577631A Aneurysm repair apparatus and method Expired / Lapsed 1984-11-16 1986-03-25 15 Details
US4573844A Anchoring bolt device Expired / Lapsed 1983-11-25 1986-03-04 14 Details
US4559041A Cannula introducers Expired / Lapsed 1984-06-25 1985-12-17 15 Details
US4557255A Ureteroscope Expired / Lapsed 1983-08-22 1985-12-10 17 Details
US4555243A Flexible and protective guide device for use with aspiratin… Expired / Lapsed 1984-03-05 1985-11-26 9 Details
US4553543A Suturing assembly and method Expired / Lapsed 1984-03-05 1985-11-19 13 Details
US4552557A Inflatable uterine hemostat Expired / Lapsed 1983-10-21 1985-11-12 7 Details
US4549529A Myopia alleviation prosthesis Expired / Lapsed 1985-10-11 1985-10-29 30 Details
US4535773A Safety puncturing instrument and method Expired / Lapsed 1982-03-26 1985-08-20 67 Details
US4533121A Variable pitch stair railing assembly Expired / Lapsed 1982-02-16 1985-08-06 24 Details
US4526348A Fence connector Expired / Lapsed 1981-10-29 1985-07-02 12 Details
US4513745A Surgical instruments and methods particularly adapted for i… Expired / Lapsed 1980-11-07 1985-04-30 9 Details
US4510934A Suture Expired / Lapsed 1983-05-13 1985-04-16 9 Details
US4505414A Expandable anvil surgical stapler Expired / Lapsed 1983-10-12 1985-03-19 9 Details
US4502482A Endotracheal tube complex Expired / Lapsed 1983-08-11 1985-03-05 29 Details
US4500077A Device for clamping workpieces Expired / Lapsed 1983-07-15 1985-02-19 8 Details
US4496090A Surgical stapler Expired / Lapsed 1982-03-10 1985-01-29 3 Details
US4491986A Heart valve Expired / Lapsed 1977-10-13 1985-01-08 10 Details
US4489446A Heart valve prosthesis Expired / Lapsed 1982-07-14 1984-12-25 17 Details
US4483339A Vascular surgery roll Expired / Lapsed 1984-02-29 1984-11-20 4 Details
US4483340A Dilatation catheter Expired / Lapsed 1980-10-20 1984-11-20 9 Details
US4479445A Adjustable embroidering tool Expired / Lapsed 1983-04-07 1984-10-30 8 Details
US4476866A Combined large and small bore syringe Expired / Lapsed 1982-08-06 1984-10-16 11 Details
US4476863A Surgical instrument for establishing circular coloanastomos… Expired / Lapsed 1981-03-09 1984-10-16 6 Details
US4475902A Device for introducing medical instruments into a body Expired / Lapsed 1982-03-23 1984-10-09 10 Details
US4474181A Method and apparatus for anastomosing small blood vessels Expired / Lapsed 1982-02-18 1984-10-02 25 Details
US4457543A Pipe coupling apparatus Expired / Lapsed 1981-10-02 1984-07-03 8 Details
US4453545A Endotracheal tube with movable endobronchial blocker for on… Expired / Lapsed 1982-04-29 1984-06-12 14 Details
US4453537A Apparatus for powering a body implant device Expired / Lapsed 1981-08-04 1984-06-12 21 Details
US4451021A Rear view mirror extension assembly Expired / Lapsed 1982-03-08 1984-05-29 4 Details
US4447222A Tampon inserter Expired / Lapsed 1981-08-03 1984-05-08 14 Details
US4445517A Suction dissector Expired / Lapsed 1981-09-28 1984-05-01 14 Details
US4438765A Motion sensitive firable device Expired / Lapsed 1981-06-04 1984-03-27 11 Details
US4437856A Peritoneal catheter device for dialysis Expired / Lapsed 1981-02-09 1984-03-20 6 Details
US4423727A Continuous flow urological endoscopic apparatus and method … Expired / Lapsed 1981-04-10 1984-01-03 15 Details
US4417583A Apparatus and method of internal examination of gastro inte… Expired / Lapsed 1982-06-30 1983-11-29 10 Details
US4413633A Method and apparatus for monitoring body conditions Expired / Lapsed 1981-06-01 1983-11-08 12 Details
US4411655A Apparatus and method for percutaneous catheterization Expired / Lapsed 1981-11-30 1983-10-25 11 Details
US4406022A Prosthetic valve means for cardiovascular surgery Expired / Lapsed 1981-11-16 1983-09-27 4 Details
US4403604A Gastric pouch Expired / Lapsed 1982-05-13 1983-09-13 9 Details
US4396021A Surgical instrument and process Expired / Lapsed 1980-12-15 1983-08-02 13 Details
CA1150121A Inflatable apparatus Expired / Lapsed 1980-11-17 1983-07-19 0 Details
US4392645A Head support and halo jig Expired / Lapsed 1981-05-28 1983-07-12 4 Details
US4392494A Ligature tying instrument Expired / Lapsed 1981-04-02 1983-07-12 6 Details
US4386762A Fence Expired / Lapsed 1981-08-03 1983-06-07 17 Details
US4367746A Clip-holder instrument for clipping blood vessels Expired / Lapsed 1980-12-08 1983-01-11 10 Details
US4364394A Combined sump drainage and irrigation device Expired / Lapsed 1980-11-24 1982-12-21 5 Details
US4364014A Optical modulator Expired / Lapsed 1978-03-30 1982-12-14 9 Details
US4349033A Intrauterine catheter Expired / Lapsed 1980-11-06 1982-09-14 7 Details
US4349027A Needle guide for implanting intra-ocular lens Expired / Lapsed 1980-06-23 1982-09-14 7 Details
US4347847A Method of hernia repair Expired / Lapsed 1980-06-06 1982-09-07 4 Details
US4345599A Tonsil snare Expired / Lapsed 1980-03-20 1982-08-24 16 Details
US4344436A Device for determining location of the tip of catheter Expired / Lapsed 1980-10-23 1982-08-17 6 Details
US4340046A Static tracheostomy tube Expired / Lapsed 1980-12-08 1982-07-20 19 Details
US4330891A Element for implantation in body tissue, particularly bone … Expired / Lapsed 1980-02-28 1982-05-25 10 Details
US4329987A Subclavian intravenous clamp Expired / Lapsed 1980-11-21 1982-05-18 7 Details
US4320757A Self contained injection system Expired / Lapsed 1981-03-27 1982-03-23 4 Details
US4317367A Fever thermometer, or the like sensor Expired / Lapsed 1979-05-23 1982-03-02 64 Details
US4316468A Surgical stapler Expired / Lapsed 1980-08-29 1982-02-23 16 Details
US4315513A Gastrostomy and other percutaneous transport tubes Expired / Lapsed 1980-03-10 1982-02-16 4 Details
US4309994A Cardiovascular cannula Expired / Lapsed 1980-02-25 1982-01-12 8 Details
US4310857A Proximity focused streak tube and camera using the same Expired / Lapsed 1977-09-19 1982-01-12 7 Details
US4298998A Breast prosthesis with biologically absorbable outer contai… Expired / Lapsed 1980-12-08 1981-11-10 28 Details
US4299030A Hand-operated shearing devices Expired / Lapsed 1979-12-26 1981-11-10 3 Details
US4299226A Coronary dilation method Expired / Lapsed 1979-08-08 1981-11-10 6 Details
US4294255A Intraluminal anastomosis Expired / Lapsed 1980-02-19 1981-10-13 9 Details
US4292974A Dilatation catheter apparatus and method Expired / Lapsed 1980-01-30 1981-10-06 10 Details
US4287890A Endarterectomy method Expired / Lapsed 1980-01-24 1981-09-08 7 Details
US4288112A Connecting piece for supply lines carrying gaseous or fluid… Expired / Lapsed 1979-04-19 1981-09-08 7 Details
US4276659A Medullary canal plug Expired / Lapsed 1979-11-19 1981-07-07 4 Details
US4275724A Endotracheal intubation device Expired / Lapsed 1979-04-02 1981-06-30 6 Details
US4274437A Heart valve Expired / Lapsed 1980-02-28 1981-06-23 11 Details
US4272887A Pivoting blade knife Expired / Lapsed 1979-05-17 1981-06-16 2 Details
US4266555A Biopsy needle with stylet and cannula orientation Expired / Lapsed 1979-11-09 1981-05-12 4 Details
US4259959A Suturing element Expired / Lapsed 1978-12-20 1981-04-07 8 Details
CA1097171A Ear piercing tool, method and insert Expired / Lapsed 1979-02-07 1981-03-10 10 Details
US4248224A Double venous cannula Expired / Lapsed 1978-08-01 1981-02-03 24 Details
US4247292A Natural tissue heart valve fixation process Expired / Lapsed 1979-06-06 1981-01-27 13 Details
US4245545A Blind-end connector for fastening sheet metal to fiber-boar… Expired / Lapsed 1979-01-26 1981-01-20 10 Details
US4245622A Inflatable/deflatable device for a heart-assist pump Expired / Lapsed 1978-06-16 1981-01-20 4 Details
US4244362A Endotracheal tube control device Expired / Lapsed 1978-11-29 1981-01-13 8 Details
US4243040A Extracting device for removing objects from human body pass… Expired / Lapsed 1979-09-17 1981-01-06 24 Details
US4241734A Device for putting clips on blood vessels Expired / Lapsed 1978-11-27 1980-12-30 4 Details
US4240294A Flow meter Expired / Lapsed 1978-12-15 1980-12-23 17 Details
US4233737A Knife with removable blade Expired / Lapsed 1979-04-13 1980-11-18 5 Details
US4233493A Apparatus for applying intense light radiation to a limited… Expired / Lapsed 1977-12-09 1980-11-11 40 Details
US4226284A Gas well dewatering method and system Expired / Lapsed 1978-06-22 1980-10-07 4 Details
US4224947A Suturing apparatus Expired / Lapsed 1979-02-05 1980-09-30 10 Details
US4218888A Impact device Expired / Lapsed 1979-02-12 1980-08-26 6 Details
CA1082552A Hemostatic clip applicator Expired / Lapsed 1977-11-29 1980-07-29 28 Details
US4213461A Miniature balloon catheter Expired / Lapsed 1977-09-15 1980-07-22 12 Details
US4210148A Retention suture system Expired / Lapsed 1978-11-03 1980-07-01 7 Details
US4198981A Intrauterine surgical device Expired / Lapsed 1978-03-27 1980-04-22 3 Details
US4197991A Greenhouse environmental control system Expired / Lapsed 1978-06-28 1980-04-15 12 Details
US4191184A Intravenous infusion regulation system with reciprocal mete… Expired / Lapsed 1978-05-31 1980-03-04 5 Details
US4190049A Posterior lens implant tool Expired / Lapsed 1977-08-08 1980-02-26 3 Details
US4186873A Humidity control system and circuitry Expired / Lapsed 1978-04-25 1980-02-05 5 Details
US4186745A Porous catheters Expired / Lapsed 1978-02-15 1980-02-05 6 Details
US4185633A Method of surgical treatment using laser emission and appar… Expired / Lapsed 1976-09-07 1980-01-29 9 Details
US4177517A Monitoring device for power presses Expired / Lapsed 1977-10-20 1979-12-04 9 Details
US4174715A Multi-pronged laparoscopy forceps Expired / Lapsed 1977-03-28 1979-11-20 13 Details
US4174517A Central system for controlling remote devices over power li… Expired / Lapsed 1977-07-15 1979-11-13 10 Details
US4168527A Analog and digital circuit tester Expired / Lapsed 1978-02-17 1979-09-18 7 Details
US4166468A Apparatus for endotracheal and esophageal intubation Expired / Lapsed 1977-08-05 1979-09-04 3 Details
US4166339A Greenhouse with heating and ventilating means Expired / Lapsed 1977-07-21 1979-09-04 2 Details
US4148140A Folding hunting knife having ball latch Expired / Lapsed 1978-03-20 1979-04-10 9 Details
US4146130A Hemostatic clip, clip applicator and cartridge therefor Expired / Lapsed 1977-04-08 1979-03-27 6 Details
US4143423A Surgical lubricants Expired / Lapsed 1977-10-25 1979-03-13 24 Details
US4142516A Urethral contraception device and method of applying same Expired / Lapsed 1976-05-11 1979-03-06 8 Details
US4141364A Expandable endotracheal or urethral tube Expired / Lapsed 1977-03-18 1979-02-27 5 Details
US4140130A Electrode structure for radio frequency localized heating o… Expired / Lapsed 1977-05-31 1979-02-20 21 Details
US4140119A Balloon-tipped extracorporeal cannula apparatus and method … Expired / Lapsed 1977-05-12 1979-02-20 16 Details
US4139012A Drain construction Expired / Lapsed 1977-03-25 1979-02-13 13 Details
US4135458A Needle holder Expired / Lapsed 1977-12-09 1979-01-23 14 Details
US4132224A Durometer for indentible tissue and the like Expired / Lapsed 1977-01-12 1979-01-02 19 Details
US4114202A Prosthetic valve assembly for use in cardiovascular surgery Expired / Lapsed 1977-01-28 1978-09-19 6 Details
US4114618A Catheter assembly Expired / Lapsed 1976-12-15 1978-09-19 10 Details
US4112596A Pseudo palate useful for diagnosis and treatment of speech … Expired / Lapsed 1977-01-03 1978-09-12 7 Details
US4103680A Multiple occlusion ring applicator and method Expired / Lapsed 1975-08-15 1978-08-01 28 Details
US4095295A Adjustable, fluid-filled breast implant Expired / Lapsed 1977-03-28 1978-06-20 16 Details
US4091813A Surgical instrument having self-regulated electrical proxim… Expired / Lapsed 1975-03-14 1978-05-30 75 Details
US4085757A Miniature balloon catheter method and apparatus Expired / Lapsed 1976-04-29 1978-04-25 0 Details
US4084744A Fire damper Expired / Lapsed 1976-05-05 1978-04-18 8 Details
US4083370A Bloat relief tube and holder Expired / Lapsed 1976-11-03 1978-04-11 3 Details
US4082670A Hollow fiber permeability apparatus Expired / Lapsed 1976-01-29 1978-04-04 34 Details
US4078721A Greenhouse control device Expired / Lapsed 1976-09-09 1978-03-14 2 Details
US4077412A Stomach intubation and catheter placement system Expired / Lapsed 1976-03-09 1978-03-07 6 Details
US4070011A Articulated tool Expired / Lapsed 1977-03-18 1978-01-24 4 Details
US4060086A Endoscope with an operating device Expired / Lapsed 1976-05-24 1977-11-29 5 Details
US4054127A Endometrial sampling instrument Expired / Lapsed 1975-10-01 1977-10-18 11 Details
US4051598A Dental implants Expired / Lapsed 1975-04-22 1977-10-04 2 Details
US4050466A Endotracheal tube Expired / Lapsed 1975-10-08 1977-09-27 9 Details
US4049181A Automatic nailing machine Expired / Lapsed 1976-06-15 1977-09-20 3 Details
US4048474A Method and apparatus for timing intravenous liquid drip rate Expired / Lapsed 1976-01-14 1977-09-13 9 Details
US4041931A Radiopaque anastomosis marker Expired / Lapsed 1976-05-17 1977-08-16 5 Details
US4041940A Contoured knee immobilizer Expired / Lapsed 1975-11-05 1977-08-16 5 Details
US4033186A Method and apparatus for down hole pressure and temperature… Expired / Lapsed 1976-08-06 1977-07-05 26 Details
US4033331A Cardiac catheter and method of using same Expired / Lapsed 1975-07-17 1977-07-05 10 Details
US4030503A Embolectomy catheter Expired / Lapsed 1975-11-05 1977-06-21 11 Details
US4029104A Calibrated leak balloon micro-catheter Expired / Lapsed 1976-03-08 1977-06-14 7 Details
US4027510A Forceps Expired / Lapsed 1974-05-15 1977-06-07 2 Details
US4020829A Spring guide wire with torque control for catheterization o… Expired / Lapsed 1975-10-23 1977-05-03 18 Details
US4017969A Cutting instrument Expired / Lapsed 1976-04-20 1977-04-19 9 Details
US4014333A Instrument for aspirating and irrigating during ophthalmic … Expired / Lapsed 1975-09-22 1977-03-29 17 Details
US4011873A Surgical instrument for ligatures Expired / Lapsed 1975-07-11 1977-03-15 4 Details
US4010737A Bone biopsy instrument kit Expired / Lapsed 1973-07-18 1977-03-08 13 Details
US4007737A Anesthesia breathing system Expired / Lapsed 1975-04-07 1977-02-15 12 Details
US4000400A Bidirectional monitoring and control system Expired / Lapsed 1975-04-09 1976-12-28 13 Details
US3999554A Kim's nasogastric tube Expired / Lapsed 1975-01-21 1976-12-28 2 Details
US3999329A Apparatus and method for treating flue gas and passing trea… Expired / Lapsed 1974-11-22 1976-12-28 20 Details
US3996938A Expanding mesh catheter Expired / Lapsed 1975-07-10 1976-12-14 4 Details
US3995833A Removable guard rail stanchion apparatus Expired / Lapsed 1975-07-23 1976-12-07 28 Details
US3995934A Flexible light guide Expired / Lapsed 1974-10-15 1976-12-07 15 Details
US3994689A Metabolic bubble oxygenator Expired / Lapsed 1973-10-31 1976-11-30 13 Details
US3993079A Device for percutaneous paracentesis, injection, drainage a… Expired / Lapsed 1975-11-28 1976-11-23 5 Details
US3993080A Suction tube and retrograde flushing for wounds, body cavit… Expired / Lapsed 1975-07-24 1976-11-23 9 Details
US3993044A Method and device for determining the length of a root cana… Expired / Lapsed 1975-03-10 1976-11-23 10 Details
US3989038A Fetal electrode and biopsy device Expired / Lapsed 1975-12-15 1976-11-02 33 Details
US3989033A Surgical instrument for biopsies Expired / Lapsed 1974-12-05 1976-11-02 9 Details
US3987839A Needle apparatus and method for making needle apparatus Expired / Lapsed 1975-09-24 1976-10-26 6 Details
US3986393A Precision measuring system for down-hole production logging… Expired / Lapsed 1975-03-07 1976-10-19 3 Details
US3973277A Attaching fibrous connective tissue to bone Expired / Lapsed 1975-01-23 1976-08-10 15 Details
US3972471A Automatic temperature setback system for controlling a heat… Expired / Lapsed 1975-05-27 1976-08-03 28 Details
US3959853A Fastening peg and method of making same Expired / Lapsed 1975-02-03 1976-06-01 7 Details
US3960153A Apparatus for the palliative treatment of pleural effusions Expired / Lapsed 1972-02-22 1976-06-01 13 Details
US3955557A Blood pump for use in an artificial heart or such purpose Expired / Lapsed 1974-09-30 1976-05-11 5 Details
US3955583A Method of and apparatus for dental anesthesia Expired / Lapsed 1974-08-05 1976-05-11 17 Details
US3949609A Resistance thermometer and disposable probe Expired / Lapsed 1975-04-28 1976-04-13 16 Details
US3949734A Fluid pump control system Expired / Lapsed 1974-07-22 1976-04-13 8 Details
US3948270A Uterine cannula Expired / Lapsed 1974-10-15 1976-04-06 10 Details
US3946731A Apparatus for extracorporeal treatment of blood Expired / Lapsed 1974-07-31 1976-03-30 30 Details
US3943914A Remote-recording periodontal depth probe Expired / Lapsed 1974-08-01 1976-03-16 18 Details
US3944429A Cleaning device Expired / Lapsed 1971-09-17 1976-03-16 2 Details
US3942249A Knife Expired / Lapsed 1975-04-02 1976-03-09 15 Details
US3941119A Means for introducing and guiding objects into body cavitie… Expired / Lapsed 1974-07-19 1976-03-02 12 Details
US3938530A Catheter Expired / Lapsed 1974-11-15 1976-02-17 6 Details
US3938504A Method for measuring vagina dimensions Expired / Lapsed 1974-10-30 1976-02-17 2 Details
US3938499A Implant and implanting method and tool Expired / Lapsed 1974-02-05 1976-02-17 2 Details
US3936935A Mitering apparatus Expired / Lapsed 1975-03-12 1976-02-10 5 Details
US3934591A Dermatome Expired / Lapsed 1974-03-20 1976-01-27 14 Details
US3934463A Hardness tester Expired / Lapsed 1974-02-28 1976-01-27 23 Details
US3933153A Intra-uterine contraceptive device Expired / Lapsed 1974-03-18 1976-01-20 5 Details
US3929123A Muscle biopsy needle Expired / Lapsed 1974-01-09 1975-12-30 5 Details
US3924914A Electrical safety grounding device means Expired / Lapsed 1973-12-28 1975-12-09 17 Details
US3911923A Occlusion ring and method and device for its application Expired / Lapsed 1974-04-09 1975-10-14 18 Details
US3908677A Dental floss holder Expired / Lapsed 1974-12-12 1975-09-30 3 Details
US3908662A Device for the eversion of hollow organs and vascular stapl… Expired / Lapsed 1973-07-06 1975-09-30 28 Details
US3906550A Prosthetic device having a porous fiber metal structure Expired / Lapsed 1973-12-27 1975-09-23 11 Details
US3902500A Endotracheal catheter with means for positive ventilation a… Expired / Lapsed 1974-03-01 1975-09-02 12 Details
US3902877A Container for air treating agent Expired / Lapsed 1973-11-01 1975-09-02 7 Details
US3900022A Endoscope with uninterrupted flow purging system Expired / Lapsed 1973-12-10 1975-08-19 2 Details
US3898999A Valve having axially separable members Expired / Lapsed 1974-07-25 1975-08-12 13 Details
US3898373A Data communication system Expired / Lapsed 1973-11-12 1975-08-05 47 Details
US3894530A Method for repairing, augmenting, or replacing a body condu… Expired / Lapsed 1973-07-06 1975-07-15 6 Details
US3893111A System and method for remote monitoring of animal temperatu… Expired / Lapsed 1974-03-14 1975-07-01 9 Details
US3889686A Catheter tube Expired / Lapsed 1973-06-26 1975-06-17 3 Details
US3888244A Means for supporting a limb in relaxed position Expired / Lapsed 1974-02-01 1975-06-10 6 Details
US3882852A Surgical dilators having insufflating means Expired / Lapsed 1974-01-11 1975-05-13 6 Details
US3883272A Hydraulic pump with replaceable pumping member Expired / Lapsed 1973-04-16 1975-05-13 7 Details
US3880691A Process for producing film and sheet materials from thermop… Expired / Lapsed 1972-03-20 1975-04-29 19 Details
US3878803A Can float pontoon Expired / Lapsed 1974-08-29 1975-04-22 7 Details
US3877838A Device for advancing material through a tube Expired / Lapsed 1973-08-09 1975-04-15 10 Details
US3874377A Apparatus for endotracheal and esophageal intubation Expired / Lapsed 1974-06-06 1975-04-01 18 Details
US3871379A Laparoscopy instruments and method for suturing and ligation Expired / Lapsed 1973-07-12 1975-03-18 2 Details
US3863239A Apparatus for detecting motion in a given field of view, fo… Expired / Lapsed 1974-02-27 1975-01-28 6 Details
US3862453A Apparatus for mounting hair Expired / Lapsed 1973-09-13 1975-01-28 7 Details
US3857398A Electrical cardiac defibrillator Expired / Lapsed 1971-12-13 1974-12-31 0 Details
US3856097A Automatic scale control system and methods Expired / Lapsed 1973-12-28 1974-12-24 32 Details
US3856051A Flexible tube device Expired / Lapsed 1973-01-18 1974-12-24 7 Details
US3856475A An apparatus for transferring a gas between two liquids Expired / Lapsed 1970-12-10 1974-12-24 30 Details
US3851995A Pump-off control apparatus for a pump jack Expired / Lapsed 1973-08-06 1974-12-03 9 Details
US3851838A Slip sleeves Expired / Lapsed 1970-06-22 1974-12-03 2 Details
US3849864A Method of making bellows Expired / Lapsed 1973-05-22 1974-11-26 9 Details
US3845882A Spring cage for use in a tablet dispensing receptacle Expired / Lapsed 1972-10-25 1974-11-05 6 Details
US3844445A Two-part tablet dispensing receptacle Expired / Lapsed 1974-02-08 1974-10-29 3 Details
US3844603A Boot for camper-truck combination Expired / Lapsed 1973-07-23 1974-10-29 5 Details
US3844279A Adjustable leg brace Expired / Lapsed 1973-05-14 1974-10-29 15 Details
US3844274A Instrument for inserting bead chain into urethea and bladder Expired / Lapsed 1972-11-10 1974-10-29 11 Details
US3844272A Surgical instruments Expired / Lapsed 1972-04-04 1974-10-29 25 Details
US3843874A Taxi meter Expired / Lapsed 1972-07-11 1974-10-22 16 Details
US3836702A Means for sealing and protecting a cable splice Expired / Lapsed 1973-04-03 1974-09-17 12 Details
US3834380A Holder for intravenous injection cannula and tubing Expired / Lapsed 1972-11-15 1974-09-10 9 Details
US3834394A Occlusion device and method and apparatus for inserting the… Expired / Lapsed 1972-02-23 1974-09-10 38 Details
US3833003A Intravascular occluding catheter Expired / Lapsed 1972-07-05 1974-09-03 20 Details
US3828772A Method of fusing bones Expired / Lapsed 1972-08-25 1974-08-13 16 Details
US3827828A Fluid pump control system Expired / Lapsed 1972-12-26 1974-08-06 5 Details
US3827426A Prosthetic pump Expired / Lapsed 1971-07-16 1974-08-06 10 Details
US3826263A Electrically heated surgical cutting instrument Expired / Lapsed 1972-08-07 1974-07-30 4 Details
US3826257A Prosthetic shunt Expired / Lapsed 1972-07-14 1974-07-30 19 Details
US3822818A Surgical instrument for joining osseous tissues by staples Expired / Lapsed 1973-06-06 1974-07-09 11 Details
US3818512A Artificial hip-joint with detachable insert Expired / Lapsed 1973-05-08 1974-06-25 2 Details
US3817251A Laparoscope cannula Expired / Lapsed 1972-10-04 1974-06-18 7 Details
US3811448A Urinary drainage catheter Expired / Lapsed 1972-10-25 1974-05-21 3 Details
US3811800A Blood pump Expired / Lapsed 1972-07-12 1974-05-21 43 Details
US3808606A Bone implant with porous exterior surface Expired / Lapsed 1973-03-19 1974-05-07 12 Details
US3809093A Surgical tool Expired / Lapsed 1972-04-14 1974-05-07 20 Details
US3807048A Combined irrigator, injector and evacuator Expired / Lapsed 1972-01-03 1974-04-30 38 Details
US3805784A Semen capsule for use with an artificial insemination appli… Expired / Lapsed 1972-08-04 1974-04-23 6 Details
US3801008A Climatic control especially for animal buildings Expired / Lapsed 1972-12-11 1974-04-02 8 Details
US3800783A Muscle biopsy device Expired / Lapsed 1972-06-22 1974-04-02 3 Details
US3799702A Apparatus for draining blood from a surgical wound and tran… Expired / Lapsed 1972-11-15 1974-03-26 12 Details
US3799173A Tracheal tubes Expired / Lapsed 1972-03-24 1974-03-26 16 Details
US3799168A Electro-surgical handle Expired / Lapsed 1972-02-28 1974-03-26 6 Details
US3797744A Portable cleaning and sanitizing system Expired / Lapsed 1972-11-20 1974-03-19 11 Details
US3791769A Magnetic heart pump Expired / Lapsed 1970-06-04 1974-02-12 8 Details
US3790870A Thin oxide force sensitive switches Expired / Lapsed 1971-03-11 1974-02-05 21 Details
US3788318A Expandable cannular, especially for medical purposes Expired / Lapsed 1972-06-12 1974-01-29 15 Details
US3784752A Time division data transmission system Expired / Lapsed 1972-10-30 1974-01-08 4 Details
US3783873A Weighted surgical clamp having foldable prop Expired / Lapsed 1971-09-16 1974-01-08 4 Details
US3773087A Flexible extensible and contractable tube Expired / Lapsed 1970-09-08 1973-11-20 2 Details
US3771173A Artificial heart Expired / Lapsed 1971-06-09 1973-11-13 10 Details
US3769963A Instrument for performing laser micro-surgery and diagnosti… Expired / Lapsed 1972-03-31 1973-11-06 30 Details
US3768482A Surgical cutting instrument having electrically heated cutt… Expired / Lapsed 1972-10-10 1973-10-30 5 Details
US3765588A Nail feeding apparatus Expired / Lapsed 1972-02-07 1973-10-16 9 Details
US3763860A Laparoscopy instruments and method for suturing and ligation Expired / Lapsed 1971-08-26 1973-10-09 5 Details
US3757629A Resilient plastic staple Expired / Lapsed 1971-05-10 1973-09-11 9 Details
US3754554A Endotracheal tube means Expired / Lapsed 1972-02-22 1973-08-28 3 Details
US3755525A Method of making multiple lumen tubing for medico surgical … Expired / Lapsed 1971-07-12 1973-08-28 0 Details
US3753434A Electronic device for measuring penetration of tooth root c… Expired / Lapsed 1971-08-23 1973-08-21 11 Details
US3742958A Suprapubic catheter inserter Expired / Lapsed 1971-04-21 1973-07-03 8 Details
US3738370A Method of defibrillating a malfunctioning heart by means of… Expired / Lapsed 1971-01-18 1973-06-12 8 Details
US3733616A Electromagnetically actuated artificial heart Expired / Lapsed 1971-05-03 1973-05-22 35 Details
US3732728A Bottom hole pressure and temperature indicator Expired / Lapsed 1971-01-04 1973-05-15 41 Details
US3725522A Method of manufacture of balloon-type catheters Expired / Lapsed 1971-07-12 1973-04-03 3 Details
US3717147A Resuscitator Expired / Lapsed 1971-03-25 1973-02-20 12 Details
US3717151A Flesh penetrating apparatus Expired / Lapsed 1971-03-11 1973-02-20 10 Details
US3713447A Suprapubic shunt Expired / Lapsed 1971-08-16 1973-01-30 12 Details
US3710777A Method and apparatus for growing graft tubes in place Expired / Lapsed 1970-12-23 1973-01-16 14 Details
US3703036A Separable connection means for reciprocating saw blades Expired / Lapsed 1971-05-03 1972-11-21 9 Details
US3702612A Catheter support Expired / Lapsed 1971-03-01 1972-11-14 10 Details
US3699969A Method for implanting natural or synthetic fibers into livi… Expired / Lapsed 1971-06-01 1972-10-24 5 Details
US3699596A Punching and binding machine Expired / Lapsed 1971-03-22 1972-10-24 0 Details
US3692048A Apparatus for controlling a mass flow rate of liquid in a c… Expired / Lapsed 1971-03-31 1972-09-19 13 Details
US3687142A Catheter Expired / Lapsed 1970-10-06 1972-08-29 17 Details
US3678205A Modular switching network Expired / Lapsed 1971-01-04 1972-07-18 10 Details
US3672377A Dental care appliance Expired / Lapsed 1971-01-05 1972-06-27 2 Details
US3669099A Method and apparatus for everting a flexible probe into a c… Expired / Lapsed 1969-12-01 1972-06-13 29 Details
US3667474A Dilator for performing mitral and tricuspidal commissurotom… Expired / Lapsed 1970-01-05 1972-06-06 8 Details
US3666586A Cord reinforced hose splicing method Expired / Lapsed 1970-11-10 1972-05-30 0 Details
US3664345A Surgical buttons Expired / Lapsed 1970-07-06 1972-05-23 15 Details
US3663965A Bacteria-resistant percutaneous conduit device Expired / Lapsed 1970-06-08 1972-05-23 6 Details
US3664347A Electric heart stimulation method and electrode Expired / Lapsed 1969-07-25 1972-05-23 16 Details
US3659610A Aspirator needle injector Expired / Lapsed 1970-04-14 1972-05-02 7 Details
US3659343A Suture cutter Expired / Lapsed 1970-04-06 1972-05-02 4 Details
US3643686A High-velocity breathing valve Expired / Lapsed 1970-10-21 1972-02-22 6 Details
US3644233A Process for preparing microporous foils from polyurethanes … Expired / Lapsed 1968-07-18 1972-02-22 2 Details
US3640282A Tracheal tube with normally expanded balloon cuff Expired / Lapsed 1970-08-06 1972-02-08 31 Details
US3638655A Intubation tubes Expired / Lapsed 1970-05-18 1972-02-01 15 Details
US3638653A Suturing device Expired / Lapsed 1969-07-31 1972-02-01 2 Details
US3638666A Apparatus for ultrasonic pipet washing Expired / Lapsed 1965-10-24 1972-02-01 8 Details
US3630076A Engine analyzer Expired / Lapsed 1969-12-31 1971-12-28 8 Details
US3626949A Cervical dilator Expired / Lapsed 1969-01-23 1971-12-14 3 Details
US3625556A Looper Expired / Lapsed 1969-10-09 1971-12-07 9 Details
US3616866A Arrangement for aligning and connecting section of cylindri… Expired / Lapsed 1969-07-18 1971-11-02 15 Details
US3613662A Cold conization instrument Expired / Lapsed 1970-02-27 1971-10-19 11 Details
US3613684A Trocar catheters Expired / Lapsed 1969-09-19 1971-10-19 4 Details
US3613664A Controllable tip brush for medical use Expired / Lapsed 1969-06-25 1971-10-19 4 Details
US3613661A Mechanically controlling flow through living body ducts Expired / Lapsed 1968-12-20 1971-10-19 16 Details
US3608097A Non-return valves particularly as prosthetics Expired / Lapsed 1969-01-03 1971-09-28 0 Details
US3606881A Conductive rubber electrode Expired / Lapsed 1970-02-20 1971-09-21 0 Details
US3606888A Stapling apparatus for anastomosis of hollow viscera Expired / Lapsed 1969-06-30 1971-09-21 0 Details
US3605744A Injection apparatus and method of injecting Expired / Lapsed 1969-04-22 1971-09-20 0 Details
US3604116A Dental impression wafer Expired / Lapsed 1970-01-08 1971-09-14 12 Details
US3603150A Disposable body temperature sensor Expired / Lapsed 1969-11-19 1971-09-07 9 Details
US3600717A Disposable stump sock Expired / Lapsed 1969-09-26 1971-08-24 10 Details
US3601320A Apparatus for breaking up a directional fluid stream Expired / Lapsed 1969-06-11 1971-08-24 4 Details
US3601302A Surgical instrument for stitching soft tissues by means of … Expired / Lapsed 1968-10-22 1971-08-24 8 Details
US3589355A Method for achieving reversible male sterilization Expired / Lapsed 1969-09-12 1971-06-29 10 Details
US3587115A Prosthetic sutureless heart valves and implant tools theref… Expired / Lapsed 1967-12-01 1971-06-28 0 Details
US3585985A Surgical instrument for biopsy Expired / Lapsed 1968-12-16 1971-06-22 8 Details
US3583387A Pressure absorbing appliance for treating hydrocephalus Expired / Lapsed 1968-12-20 1971-06-08 11 Details
US3581736A Electrocardiograph electrode Expired / Lapsed 1968-12-20 1971-06-01 3 Details
US3580256A Pre-tied suture and method of suturing Expired / Lapsed 1969-06-30 1971-05-25 7 Details
US3579751A Clips useful in the medical field Expired / Lapsed 1969-04-15 1971-05-25 2 Details
US3577837A Subdermal tendon implant Expired / Lapsed 1968-04-30 1971-05-11 9 Details
US3575383A Ultrasonic cleaning system, apparatus and method therefor Expired / Lapsed 1969-01-13 1971-04-20 12 Details
US3572335A Cervical implant method and device Expired / Lapsed 1969-01-10 1971-03-23 0 Details
US3572375A Twin valve t-connector Expired / Lapsed 1968-03-05 1971-03-23 0 Details
US3568662A Method and apparatus for sensing bioelectric potentials Expired / Lapsed 1967-07-07 1971-03-09 19 Details
US3566358A Integrated multi-computer system Expired / Lapsed 1968-03-19 1971-02-23 0 Details
US3561493A Composite tubes and method of manufacturing same Expired / Lapsed 1965-04-21 1971-02-09 4 Details
US3556079A Method of puncturing a medical instrument under guidance of… Expired / Lapsed 1968-04-03 1971-01-19 6 Details
US3556969A Method and apparatus for obtaining electrodeposited shaped … Expired / Lapsed 1967-09-22 1971-01-19 0 Details
US3555131A Method for making reinforced modular foam panels Expired / Lapsed 1966-11-18 1971-01-12 0 Details
US3552626A Instrument for circular suturing of hollow body organs Expired / Lapsed 1968-04-04 1971-01-05 5 Details
US3553299A Process of producing shaped optical bodies useful as aids t… Expired / Lapsed 1967-12-12 1971-01-05 0 Details
US3547103A Coil spring guide Expired / Lapsed 1965-10-29 1970-12-15 0 Details
US3543744A Equipment for administering enemas for radiological purposes Expired / Lapsed 1968-11-29 1970-12-01 0 Details
US3543743A Combined urinary catheter and specific gravity measuring ap… Expired / Lapsed 1967-06-12 1970-12-01 0 Details
US3538425A Electrical well-logging probe having redox-reversible and r… Expired / Lapsed 1968-01-18 1970-11-03 0 Details
US3535935A Circuit arrangement for electrical clinical thermometer Expired / Lapsed 1968-03-27 1970-10-27 0 Details
US3536451A System for cyclic pulsed pumping and fluid interaction Expired / Lapsed 1965-01-21 1970-10-27 0 Details
US3534411A Cloth covered heart valve Expired / Lapsed 1967-10-05 1970-10-20 0 Details
US3533403A Combination heart catheter and electrode Expired / Lapsed 1967-05-10 1970-10-13 0 Details
US3532104A Pressure compensated flow control valve system Expired / Lapsed 1968-01-24 1970-10-06 0 Details
US3532372A Plastic interlock Expired / Lapsed 1967-09-14 1970-10-06 0 Details
US3527223A Ear stud and hollow piercer for insertion thereof Expired / Lapsed 1967-09-01 1970-09-08 0 Details
US3527227A Microwave electrodes for medical therapy Expired / Lapsed 1966-09-19 1970-09-08 0 Details
US3524966A Heat-generating pipe utilizing skin effect of a.c. having i… Expired / Lapsed 1968-03-28 1970-08-18 0 Details
US3516631A Cable clamp Expired / Lapsed 1969-07-28 1970-06-23 0 Details
US3512519A Anatomical biopsy sampler Expired / Lapsed 1967-10-26 1970-05-19 0 Details
US3505686A Device for effecting blood interchange functions Expired / Lapsed 1965-03-08 1970-04-14 0 Details
US3504676A Endotracheal balloon catheter provided with inflation press… Expired / Lapsed 1967-06-13 1970-04-07 0 Details
US3500829A Earhole piercing and treating apparatus Expired / Lapsed 1968-02-09 1970-03-17 0 Details
US3499435A Esophageal probe for use in monitoring Expired / Lapsed 1967-06-02 1970-03-10 0 Details
US3491376A Heart valve with separate suturing ring sub-assembly Expired / Lapsed 1965-10-06 1970-01-27 0 Details
US3487784A Pumps capable of use as heart pumps Expired / Lapsed 1967-10-26 1970-01-06 0 Details
US3477432A Combination mixing and injecting medical syringe Expired / Lapsed 1967-08-24 1969-11-11 0 Details
US3474775A Electrode assembly for skin contact Expired / Lapsed 1967-02-27 1969-10-28 0 Details
US3472233A Electrical muscle stimulator Expired / Lapsed 1966-12-02 1969-10-14 0 Details
US3465441A Ring-type implant for artificial teeth Expired / Lapsed 1968-03-20 1969-09-09 0 Details
US3462362A Method of reverse osmosis Expired / Lapsed 1966-07-26 1969-08-19 0 Details
US3459310A Membrane fluid diffusion exchange device Expired / Lapsed 1967-04-18 1969-08-05 0 Details
US3459175A Medical device for control of enemata Expired / Lapsed 1966-04-08 1969-08-05 0 Details
US3443564A Tracheal tube Expired / Lapsed 1966-06-02 1969-05-13 0 Details
US3434613A Plastic tear-off closure caps for bottles and bottle neck a… Expired / Lapsed 1967-01-26 1969-03-25 0 Details
US3434476A Plasma arc scalpel Expired / Lapsed 1966-04-07 1969-03-25 0 Details
US3435400A Thermal probe Expired / Lapsed 1966-01-26 1969-03-25 0 Details
US3433215A Apparatus for placing in and retrieving a tubular probe fro… Expired / Lapsed 1965-10-20 1969-03-18 0 Details
US3433214A Method and apparatus for everting under pressure a tubular … Expired / Lapsed 1965-10-20 1969-03-18 0 Details
US3430300A Fastener for medical tubes and the like Expired / Lapsed 1967-04-20 1969-03-04 0 Details
US3426271A Displacement measuring system with high frequency source an… Expired / Lapsed 1965-08-06 1969-02-04 0 Details
US3424883A Fluid conducting device and pressure sensitive control means Expired / Lapsed 1965-11-15 1969-01-28 0 Details
US3421501A Method and application of orthopedic appliances with an ult… Expired / Lapsed 1965-09-22 1969-01-14 0 Details
US3420184A Pump employing magnetic drive Expired / Lapsed 1967-05-17 1969-01-07 0 Details
US3417744A Catheter for selective bronchography Expired / Lapsed 1966-03-15 1968-12-24 0 Details
US3417743A Training and diagnostic apparatus Expired / Lapsed 1965-06-23 1968-12-24 0 Details
US3414884A Electronic process control devices Expired / Lapsed 1965-12-20 1968-12-03 0 Details
US3409013A Instrument for inserting artificial heart valves Expired / Lapsed 1965-10-23 1968-11-05 0 Details
US3407815A Adenotome having a flat cutting surface Expired / Lapsed 1965-08-13 1968-10-29 0 Details
US3404707A Thread pulling needle devices Expired / Lapsed 1966-06-29 1968-10-08 0 Details
US3397699A Retaining catheter having resiliently biased wing flanges Expired / Lapsed 1966-05-05 1968-08-20 0 Details
US3394705A Drainage balloon catheter having means for antiseptic treat… Expired / Lapsed 1965-10-22 1968-07-30 0 Details
US3395270A Relativistic inertial reference device Expired / Lapsed 1962-06-28 1968-07-30 2 Details
US3388859A Taxi meter Expired / Lapsed 1967-03-17 1968-06-18 0 Details
US3388847A Surgical instrument for suturing hollow organs Expired / Lapsed 1965-08-26 1968-06-18 0 Details
US3372477A Surgical suture extractor Expired / Lapsed 1966-12-15 1968-03-12 0 Details
US3372439A Pipe hanger Expired / Lapsed 1965-10-21 1968-03-12 0 Details
US3370284A Optical space alarm Expired / Lapsed 1965-01-21 1968-02-20 2 Details
US3367335A Surgical knife with replaceable blade Expired / Lapsed 1965-10-22 1968-02-06 0 Details
US3367339A Implantable nerve stimulating electrode and lead Expired / Lapsed 1964-10-09 1968-02-06 0 Details
US3363628A Hemostatic clip Expired / Lapsed 1964-09-28 1968-01-16 2 Details
US3360007A Gas pressure and vacuum pull control valve Expired / Lapsed 1965-08-02 1967-12-26 1 Details
US3353531A Biopsy instrument with specimen lifting means Expired / Lapsed 1965-10-22 1967-11-21 2 Details
US3353736A Fastener cartridge and assembly Expired / Lapsed 1965-07-30 1967-11-21 1 Details
US3353853A Tube connecting fastener Expired / Lapsed 1965-05-03 1967-11-21 2 Details
US3352303A Method for blood clot lysis Expired / Lapsed 1965-07-28 1967-11-14 2 Details
US3351105A Rechargeable dispenser Expired / Lapsed 1965-04-21 1967-11-07 2 Details
US3349489A Multiple celled pressure sensitive dental device for measur… Expired / Lapsed 1963-02-07 1967-10-31 2 Details
US3348548A Implantable electrode with stiffening stylet Expired / Lapsed 1965-04-26 1967-10-24 1 Details
US3348544A Polypropylene canula for continuous intravenous infusion Expired / Lapsed 1962-07-26 1967-10-24 2 Details
US3348037A Catoptrical-dioptrical device for electric lighting Expired / Lapsed 1965-08-03 1967-10-17 2 Details
US3347224A Apparatus and method for measuring cardiac output Expired / Lapsed 1964-05-26 1967-10-17 2 Details
US3346442A Honeycomb panel and method of making same Expired / Lapsed 1963-12-04 1967-10-10 2 Details
US3344649A Hemostatic clip remover Expired / Lapsed 1964-12-18 1967-10-03 2 Details
US3343624A Taxi meter monitoring system Expired / Lapsed 1965-10-22 1967-09-26 2 Details
US3343864A Material handling apparatus and the like Expired / Lapsed 1965-10-07 1967-09-26 2 Details
US3341151A Apparatus providing a directive field pattern and attitude … Expired / Lapsed 1965-07-23 1967-09-12 1 Details
US3337870A Linear polarity coincidence correlator for gaussian signals Expired / Lapsed 1964-10-19 1967-08-22 2 Details
US3336919A Implanted electrode for measuring oxygen pressure in an org… Expired / Lapsed 1964-02-21 1967-08-22 2 Details
US3333583A Artificial gill Expired / Lapsed 1963-09-25 1967-08-01 2 Details
US3329998A Apparatus for the production of extruded articles with bris… Expired / Lapsed 1966-04-08 1967-07-11 2 Details
US3327712A Photocoagulation type fiber optical surgical device Expired / Lapsed 1961-09-15 1967-06-27 0 Details
US3326213A Therapeutic dressing material and method of using the same Expired / Lapsed 1964-07-09 1967-06-20 1 Details
US3326216A Hemostatic clip constructions Expired / Lapsed 1964-03-30 1967-06-20 2 Details
US3322584A Method of bonding webs of plastic threads by means of gas j… Expired / Lapsed 1963-09-30 1967-05-30 2 Details
US3320946A Method and means for testing cellular tissues Expired / Lapsed 1963-07-29 1967-05-23 2 Details
US3316796A Self-drilling expansion anchor bolt Expired / Lapsed 1965-06-24 1967-05-02 2 Details
US3315558A Expansion plug Expired / Lapsed 1964-10-16 1967-04-25 1 Details
US3314431A Stylet for insertion of endotracheal catheter Expired / Lapsed 1964-10-05 1967-04-18 2 Details
US3313160A Remote meter reading system Expired / Lapsed 1964-06-29 1967-04-11 2 Details
US3313299A Intravascular catheter with coaxial puncturing means Expired / Lapsed 1964-02-05 1967-04-11 2 Details
US3312237A Bicuspid heart valve Expired / Lapsed 1964-05-06 1967-04-04 2 Details
US3308828A Craniotomy instrument Expired / Lapsed 1963-08-08 1967-03-14 2 Details
US3307553A Apparatus for cooling irradiated skin areas Expired / Lapsed 1963-01-30 1967-03-07 2 Details
US3306586A Adjustable railing Expired / Lapsed 1965-07-13 1967-02-28 0 Details
US3307094A A.-c. switch speed control system for a.-c. motors Expired / Lapsed 1963-12-30 1967-02-28 2 Details
US3306292A Bandage Expired / Lapsed 1962-11-20 1967-02-28 1 Details
US3293237A Process of solubilizing native collagen by reacting said co… Expired / Lapsed 1962-11-30 1966-12-20 2 Details
US3276996A Separating water from saline solutions Expired / Lapsed 1963-07-15 1966-10-04 2 Details
US3270330A Ice detecting apparatus Expired / Lapsed 1963-11-04 1966-08-30 2 Details
US3266629A Gas and liquid exchange apparatus Expired / Lapsed 1964-03-31 1966-08-16 2 Details
US3265062A Valve for breathing apparatus Expired / Lapsed 1963-07-09 1966-08-09 2 Details
US3265873A System for monitoring and control of material in a continui… Expired / Lapsed 1961-10-10 1966-08-09 0 Details
US3263737A Method of automatically maintaining the condition of the at… Expired / Lapsed 1963-11-29 1966-08-02 0 Details
US3260107A Gun pressure measuring device Expired / Lapsed 1963-10-31 1966-07-12 0 Details
US3258971A Stress-strain gauge Expired / Lapsed 1962-01-26 1966-07-05 2 Details
US3256655A House trailer skirt Expired / Lapsed 1963-04-08 1966-06-21 2 Details
US3254533A Clinical thermometer Expired / Lapsed 1963-01-21 1966-06-07 2 Details
US3254650A Surgical anastomosis methods and devices Expired / Lapsed 1962-03-19 1966-06-07 2 Details
US3254324A Traffic signal systems Expired / Lapsed 1961-01-13 1966-05-31 2 Details
US3247841A Diagnostic method Expired / Lapsed 1961-05-29 1966-04-26 2 Details
US3243753A Resistance element Expired / Lapsed 1962-11-13 1966-03-29 2 Details
US3242466A Method and apparatus for sorting of recorded digital data Expired / Lapsed 1960-02-02 1966-03-22 2 Details
US3239935A Artificial denture and apparatus for determining bite press… Expired / Lapsed 1962-02-09 1966-03-15 2 Details
US3237623A Apparatus for destroying limited groups of cells Expired / Lapsed 1963-05-01 1966-03-01 2 Details
US3234723A Elongated tension load carrying element for oil wells and t… Expired / Lapsed 1963-05-20 1966-02-15 2 Details
US3234636A Clip applicator Expired / Lapsed 1962-03-19 1966-02-15 2 Details
US3233800A Synthetic needle for sewing leather or the like Expired / Lapsed 1963-04-22 1966-02-08 0 Details
US3228394A Gill-type underwater breathing equipment and methods for re… Expired / Lapsed 1962-11-30 1966-01-11 4 Details
US3228821A Vented waterproof fabric Expired / Lapsed 1962-04-12 1966-01-11 2 Details
US3227637A Method of bonding coatings Expired / Lapsed 1965-06-03 1966-01-04 2 Details
US3223595A Culturflex apparatus and flexible tubular casing therein Expired / Lapsed 1962-10-01 1965-12-14 2 Details
US3222755A Method of assembling an electrode Expired / Lapsed 1961-08-02 1965-12-14 0 Details
US3221555A Clinical thermometer Expired / Lapsed 1961-11-01 1965-12-07 0 Details
US3218094A Coupling connection for plastic or soft tubing Expired / Lapsed 1963-08-09 1965-11-16 2 Details
US3216038A Synthetic plastic broom bristles Expired / Lapsed 1963-11-01 1965-11-09 2 Details
US3215914A Fast and slow dual photo-cell bridge plural servo-motor con… Expired / Lapsed 1962-08-28 1965-11-02 2 Details
US3213746A Anchoring socket for screw type fasteners Expired / Lapsed 1963-10-24 1965-10-26 2 Details
US3211152A Safety endotracheal tube cuff Expired / Lapsed 1961-11-15 1965-10-12 2 Details
US3211111A Multi-channel carrier current control system Expired / Lapsed 1960-08-24 1965-10-12 2 Details
US3206086A Disposable threaded needle Expired / Lapsed 1963-07-24 1965-09-14 2 Details
US3202052A Interferometer used with piezoelectric crystal to form ligh… Expired / Lapsed 1962-01-12 1965-08-24 0 Details
US3201927A Closure for filter container Expired / Lapsed 1961-08-16 1965-08-24 0 Details
US3192375A Illuminated level Expired / Lapsed 1964-05-14 1965-06-29 0 Details
US3191777A Flexible, perforated display or storage panels Expired / Lapsed 1964-04-20 1965-06-29 2 Details
US3191303A Tooth filling material Expired / Lapsed 1962-05-21 1965-06-29 2 Details
US3191119A Apparatus for measuring flow using magnetic resoance Expired / Lapsed 1962-06-05 1965-06-22 2 Details
US3188030A Clamp or hanger for cables and the like Expired / Lapsed 1962-12-11 1965-06-08 2 Details
US3187620A Expansion anchor with rotationpreventing teeth Expired / Lapsed 1962-06-04 1965-06-08 0 Details
US3186049A Fastener Expired / Lapsed 1962-01-11 1965-06-01 1 Details
US3183908A Pump oxygenator system Expired / Lapsed 1961-09-18 1965-05-18 2 Details
US3181124A Data processing system Expired / Lapsed 1962-04-05 1965-04-27 2 Details
US3176316A Plastic prosthetic tendon Expired / Lapsed 1963-01-07 1965-04-06 2 Details
US3175557A Tracheal cannula Expired / Lapsed 1963-05-17 1965-03-30 2 Details
US3171410A Pneumatic wound dressing Expired / Lapsed 1962-08-29 1965-03-02 2 Details
US3171799A Process for the demineralization of water Expired / Lapsed 1962-08-28 1965-03-02 2 Details
US3171127A Radio navigation apparatus Expired / Lapsed 1962-10-02 1965-02-23 2 Details
US3169528A Coronary sinus sucker Expired / Lapsed 1963-05-24 1965-02-16 2 Details
US3168826A Atmospheric pressure compensation of load cells Expired / Lapsed 1961-04-12 1965-02-09 2 Details
US3167070A Respirator with positive air seal Expired / Lapsed 1961-06-14 1965-01-26 2 Details
US3166688A Polytetrafluoroethylene tubing having electrically conducti… Expired / Lapsed 1962-11-14 1965-01-19 2 Details
US3162190A Diagnostic and exploratory instrument Expired / Lapsed 1962-10-31 1964-12-22 0 Details
US3162213A Surge attenuating devices Expired / Lapsed 1962-06-13 1964-12-22 2 Details
US3157377A Cable supporting clip Expired / Lapsed 1963-04-17 1964-11-17 2 Details
US3157089A Means for illuminating interior of underground shelters Expired / Lapsed 1962-06-01 1964-11-17 2 Details
US3156292A Gas burner with secondary air supply Expired / Lapsed 1961-04-24 1964-11-10 2 Details
US3155097A Feeding and suction tubes Expired / Lapsed 1962-07-17 1964-11-03 2 Details
US3153733A Sequential keyer Expired / Lapsed 1962-06-15 1964-10-20 1 Details
US3148624A Hydraulic pump Expired / Lapsed 1961-06-21 1964-09-15 0 Details
US3144019A Cardiac monitoring device Expired / Lapsed 1960-08-08 1964-08-11 2 Details
US3140986A Method and apparatus for producing electrical power and dis… Expired / Lapsed 1958-01-17 1964-07-14 4 Details
US3138158A Means for anchorage of surgical fluid injection and drainag… Expired / Lapsed 1962-11-02 1964-06-23 2 Details
US3138533A Sanitary tissues Expired / Lapsed 1958-05-27 1964-06-23 2 Details
US3135262A Tampon Expired / Lapsed 1961-11-15 1964-06-02 2 Details
US3135573A Data gathering, transmitting and recording system Expired / Lapsed 1961-04-17 1964-06-02 2 Details
US3133997A Fluid-pressure actuated switch Expired / Lapsed 1961-09-29 1964-05-19 2 Details
US3130419A Heart valve with shielded sewing ring Expired / Lapsed 1961-04-24 1964-04-28 1 Details
US3127846A Artificial blood pump means Expired / Lapsed 1960-02-16 1964-04-07 1 Details
US3122137A Device for facilitating iontophoresis treatment of eyes Expired / Lapsed 1961-10-30 1964-02-25 2 Details
US3122479A Hemostatic surgical dressings Expired / Lapsed 1957-11-14 1964-02-25 5 Details
US3121427A Catamenial appliance and composition Expired / Lapsed 1960-06-13 1964-02-18 2 Details
US3120230A Surgical clamp Expired / Lapsed 1960-10-24 1964-02-04 0 Details
US3119921A Ice skates having heated blades Expired / Lapsed 1962-11-02 1964-01-28 2 Details
US3119392A Catheter Expired / Lapsed 1961-02-14 1964-01-28 2 Details
US3117801A Snubbing cable for vehicle rear axles Expired / Lapsed 1962-11-16 1964-01-14 2 Details
US3117277A Passive radio repeater transmission system Expired / Lapsed 1961-12-04 1964-01-07 1 Details
US3114373A Gastrointestinal sump tube assembly Expired / Lapsed 1962-06-07 1963-12-17 2 Details
US3114303A Center guide strip for dual roadways Expired / Lapsed 1961-01-31 1963-12-17 2 Details
US3111721A Telephone booth construction Expired / Lapsed 1962-08-10 1963-11-26 2 Details
US3111125A Drainage device Expired / Lapsed 1961-11-06 1963-11-19 2 Details
US3108357A Compound absorbable prosthetic implants, fabrics and yarns … Expired / Lapsed 1962-06-20 1963-10-29 4 Details
US3101929A Fence or closure structure Expired / Lapsed 1960-10-31 1963-08-27 2 Details
US3101318A Method and composition for removing detergents and other co… Expired / Lapsed 1961-04-10 1963-08-20 2 Details
US3097076A Process of concentration of solutes Expired / Lapsed 1958-03-07 1963-07-09 2 Details
US3091179A Well pumping operation control system Expired / Lapsed 1961-03-15 1963-05-28 2 Details
US3089486A Orthopedic structures, and methods and compositions for mak… Expired / Lapsed 1961-03-29 1963-05-14 2 Details
US3087009A Spacer for conductors Expired / Lapsed 1961-05-17 1963-04-23 1 Details
US3082625A Thermometer Expired / Lapsed 1958-08-19 1963-03-26 0 Details
US3080755A Metallurgical process control Expired / Lapsed 1960-10-12 1963-03-12 2 Details
US3080630A Fastener for use as a cuff link Expired / Lapsed 1960-07-25 1963-03-12 0 Details
US3079486A Electrical heater for a container Expired / Lapsed 1961-05-22 1963-02-26 2 Details
US3078532A Clamp Expired / Lapsed 1959-12-28 1963-02-26 1 Details
US3078780A Ventilating arrangement for buildings, more especially gree… Expired / Lapsed 1959-11-18 1963-02-26 1 Details
US3076453A Hip nail Expired / Lapsed 1961-01-16 1963-02-05 2 Details
US3073310A Surgical instrument positioning device Expired / Lapsed 1957-08-05 1963-01-15 2 Details
US3073308A Diaper inserts Expired / Lapsed 1956-07-25 1963-01-15 2 Details
US3071137A Animated intestinal tube Expired / Lapsed 1960-08-18 1963-01-01 2 Details
US3070096A Shield for sanitary napkins Expired / Lapsed 1959-10-27 1962-12-25 0 Details
US3065360A Transistor thyratron circuit employing grounded-emitter sil… Expired / Lapsed 1959-05-19 1962-11-20 0 Details
US3062210A Medicated pad or bandage and method of making the same Expired / Lapsed 1958-08-21 1962-11-06 2 Details
US3060069A Insulating jacket for fluid lines and the like Expired / Lapsed 1959-10-23 1962-10-23 1 Details
US3058473A Remotely directing catheters and tools Expired / Lapsed 1959-11-27 1962-10-16 0 Details
US3055403A Powder de-duster or collector apparatus for capsule-filling… Expired / Lapsed 1959-11-27 1962-09-25 0 Details
US3055359A Knee srace Expired / Lapsed 1959-02-03 1962-09-25 0 Details
US3053255A Process of percutaneously administering exact doses of phys… Expired / Lapsed 1958-12-16 1962-09-11 2 Details
US3053385A Disposable applicator Expired / Lapsed 1958-12-16 1962-09-11 0 Details
US3051994A Injection-moulding composite articles Expired / Lapsed 1961-02-01 1962-09-04 0 Details
US3050896A Fishing tool Expired / Lapsed 1960-06-20 1962-08-28 0 Details
US3050066A Retention catheters Expired / Lapsed 1958-12-31 1962-08-21 0 Details
US3050665A Electrolytic product cell Expired / Lapsed 1955-07-13 1962-08-21 2 Details
US3048177A Blood vessel coupling device Expired / Lapsed 1959-06-23 1962-08-07 0 Details
US3046658A Marking device for detecting dental premature contact of op… Expired / Lapsed 1959-05-25 1962-07-31 0 Details
US3045180A Low frequency complex wave analyzer Expired / Lapsed 1959-02-09 1962-07-17 0 Details
US3043354A Molded plastic container Expired / Lapsed 1960-07-15 1962-07-10 0 Details
US3043303A Method and apparatus for utilizing the permanent long term … Expired / Lapsed 1958-07-11 1962-07-10 0 Details
US3042030A Spherical type insert plug for body passageway and tool the… Expired / Lapsed 1958-11-25 1962-07-03 0 Details
US3042044A Seamless extruded plastic rectal tubes Expired / Lapsed 1958-07-02 1962-07-03 0 Details
US3041441A Portable stock warmer Expired / Lapsed 1960-05-24 1962-06-26 0 Details
US3040747A Ligature-tier Expired / Lapsed 1959-03-10 1962-06-26 0 Details
US3039468A Trocar and method of treating bloat Expired / Lapsed 1959-01-07 1962-06-19 0 Details
US3038638A Metering mechanism for a filling station Expired / Lapsed 1960-02-09 1962-06-12 0 Details
US3035538A Propeller guards Expired / Lapsed 1961-04-14 1962-05-22 0 Details
US3035580A Surgical needle Expired / Lapsed 1960-12-27 1962-05-22 0 Details
US3035944A Electrical component preparation utilizing a pre-acid treat… Expired / Lapsed 1960-08-05 1962-05-22 2 Details
US3035582A Multiple forceps tissue holding instrument Expired / Lapsed 1959-10-16 1962-05-22 0 Details
US3035583A Conductive sutures Expired / Lapsed 1959-05-27 1962-05-22 0 Details
US3035492A Electronic control of optical and near optical radiation Expired / Lapsed 1959-05-15 1962-05-22 0 Details
US3035302A Extrusion and forming of plastic tubing Expired / Lapsed 1959-03-11 1962-05-22 0 Details
US3034505A Fluid circulation system Expired / Lapsed 1959-02-24 1962-05-15 0 Details
US3033204A Ligature-tier Expired / Lapsed 1958-05-05 1962-05-08 0 Details
US3032030A Sphygmomanometer Expired / Lapsed 1959-11-06 1962-05-01 0 Details
US3032039A Arterial and veinous clamp and clamp applicator Expired / Lapsed 1959-05-26 1962-05-01 0 Details
US3032037A Means for the extraction and storage of blood Expired / Lapsed 1958-06-20 1962-05-01 0 Details
US3032031A Orificial instrument construction Expired / Lapsed 1958-06-12 1962-05-01 0 Details
US3030953A Apparatus for applying catheter Expired / Lapsed 1957-10-17 1962-04-24 0 Details
US3028312A Method for cultivating microorganisms Expired / Lapsed 1959-09-21 1962-04-03 2 Details
US3026118A Skate and shoe combination Expired / Lapsed 1959-09-03 1962-03-20 0 Details
US3024342A Utensil Expired / Lapsed 1960-09-13 1962-03-06 0 Details
US3019787A Apparatus for electrolytic dental desensitization Expired / Lapsed 1960-10-05 1962-02-06 0 Details
US3020414A Scanning mirror assembly Expired / Lapsed 1960-07-05 1962-02-06 0 Details
US3017887A Stereotaxy device Expired / Lapsed 1960-01-19 1962-01-23 0 Details
US3017884A Apparatus for injecting or infusing fluids into patients an… Expired / Lapsed 1958-05-01 1962-01-23 0 Details
US3016896A Disposable hypodermic syringe Expired / Lapsed 1960-01-26 1962-01-16 0 Details
US3016556A Mop having a universally adjustable handle Expired / Lapsed 1958-02-27 1962-01-16 0 Details
US3011102A Control system Expired / Lapsed 1958-12-10 1961-11-28 0 Details
US3009852A Plastic tag and applying tongs therefor Expired / Lapsed 1960-01-22 1961-11-21 2 Details
US3010095A Code conversion unit for the control of devices Expired / Lapsed 1957-12-27 1961-11-21 0 Details
US3007611A Metering dispenser for flowable materials Expired / Lapsed 1959-07-09 1961-11-07 0 Details
US3007203A Method of molding a foam plastic article having a skin on i… Expired / Lapsed 1958-09-23 1961-11-07 0 Details
US3006337A Airway for artificial respiration Expired / Lapsed 1959-08-28 1961-10-31 0 Details
US3006063A Brush spring installer Expired / Lapsed 1959-08-25 1961-10-31 0 Details
US3006344A Surgical ligator and cutter Expired / Lapsed 1959-02-24 1961-10-31 0 Details
US3000208A Strain gauge Expired / Lapsed 1958-10-06 1961-09-19 0 Details
US3001017A Method and means for the automatic repetition of signal tra… Expired / Lapsed 1956-08-06 1961-09-19 0 Details
US2999999A Highway traffic control system Expired / Lapsed 1955-02-08 1961-09-12 0 Details
US2994404A Moisture absorbing device Expired / Lapsed 1959-04-28 1961-08-01 0 Details
US2994869A Microwave antenna system Expired / Lapsed 1950-05-23 1961-08-01 0 Details
US2993979A Heated baby carriage blanket Expired / Lapsed 1959-03-03 1961-07-25 0 Details
US2990605A Method of forming artificial vascular members Expired / Lapsed 1957-01-30 1961-07-04 0 Details
US2990504A Variable bandwidth servosystem Expired / Lapsed 1958-09-10 1961-06-27 0 Details
US2990107A Compressor Expired / Lapsed 1956-11-30 1961-06-27 0 Details
US2985168A Bone-aligning instrument Expired / Lapsed 1959-03-19 1961-05-23 0 Details
US2979680A Pressure responsive devices Expired / Lapsed 1959-11-19 1961-04-11 0 Details
US2976865A Cylindrical strain gauge Expired / Lapsed 1958-10-21 1961-03-28 0 Details
US2972447A Optimal controller Expired / Lapsed 1956-06-14 1961-02-21 0 Details
US2969795A Casing compositions Expired / Lapsed 1959-08-21 1961-01-31 2 Details
US2969622A Means for reproduction of master shapes Expired / Lapsed 1957-11-25 1961-01-31 0 Details
US2969058A Anode-cathode construction for brain polarograph Expired / Lapsed 1959-05-18 1961-01-24 0 Details
US2965173A Well apparatus and methods of setting a plurality of tubing… Expired / Lapsed 1955-04-28 1960-12-20 0 Details
US2961255A Trailer skirts Expired / Lapsed 1958-07-28 1960-11-22 0 Details
US2959746A Tuning fork frequency standard having a blocking coil in en… Expired / Lapsed 1958-03-28 1960-11-08 0 Details
US2959732A Engine analyzer employing radiofrequency oscillations Expired / Lapsed 1954-10-05 1960-11-08 0 Details
US2955592A Diagnostic instrument Expired / Lapsed 1955-12-29 1960-10-11 0 Details
US2953243A Disposable needle assembly Expired / Lapsed 1957-07-25 1960-09-20 0 Details
US2952459A Leg exercising device Expired / Lapsed 1959-04-13 1960-09-13 0 Details
US2952039A Method of making a two-part container from an extruded blank Expired / Lapsed 1957-04-03 1960-09-13 0 Details
US2946607A Self-flaring tube coupling Expired / Lapsed 1956-12-06 1960-07-26 0 Details
US2933923A Method for detecting underground radioactive deposits Expired / Lapsed 1956-08-20 1960-04-26 0 Details
US2932323A Polyethylene articles Expired / Lapsed 1957-02-25 1960-04-12 2 Details
US2931912A Target scanning system Expired / Lapsed 1958-02-19 1960-04-05 0 Details
US2929379A Sanitary napkin Expired / Lapsed 1957-07-29 1960-03-22 0 Details
US2928393A Colostomy or drainage appliance Expired / Lapsed 1958-01-06 1960-03-15 0 Details
US2929043A Antenna lead-in connector Expired / Lapsed 1956-06-19 1960-03-15 0 Details
US2927592A Shock actuated valve Expired / Lapsed 1957-07-15 1960-03-08 0 Details
US2924964A Integrator for recording ballistics Expired / Lapsed 1955-10-26 1960-02-16 0 Details
US2924213A Electrical probe Expired / Lapsed 1958-03-17 1960-02-09 0 Details
US2923299A Tracheostomy tube device Expired / Lapsed 1957-10-17 1960-02-02 0 Details
US2922940A Digital control system for machine tools Expired / Lapsed 1957-04-29 1960-01-26 0 Details
US2922443A Method and apparatus for de-aerating bags during filling Expired / Lapsed 1956-11-05 1960-01-26 0 Details
US2922688A Apparatus for recording electrically on heat-sensitive mate… Expired / Lapsed 1956-11-01 1960-01-26 0 Details
US2919692A Vertebral trephine biopsy instruments Expired / Lapsed 1956-02-23 1960-01-05 0 Details
US2920206A Method and apparatus for continuous measurement of moisture Expired / Lapsed 1954-08-31 1960-01-05 0 Details
US2919401A Automatic calibration circuit Expired / Lapsed 1958-12-30 1959-12-29 0 Details
US2914873A Adhesive devices Expired / Lapsed 1957-01-25 1959-12-01 0 Details
US2915743A Disaster warning system Expired / Lapsed 1956-05-29 1959-12-01 0 Details
US2913943A Work holding pliers Expired / Lapsed 1957-10-10 1959-11-24 0 Details
US2914757A Apparatus for generating coded patterns of electric pulses Expired / Lapsed 1953-11-02 1959-11-24 0 Details
US2914444A Cellulosic hemostatic composition Expired / Lapsed 1950-12-12 1959-11-24 2 Details
US2912982A Endotracheal tube adapter Expired / Lapsed 1958-06-04 1959-11-17 0 Details
US2912981A Inflatable retention catheter Expired / Lapsed 1958-04-10 1959-11-17 0 Details
US2913602A Method and means for transmitting elastic waves Expired / Lapsed 1955-11-03 1959-11-17 0 Details
US2912999A Fluid check valve Expired / Lapsed 1955-07-18 1959-11-17 0 Details
US2904842A Method and means for vulcanizing tires Expired / Lapsed 1957-03-14 1959-09-22 0 Details
US2900696A Dog collar or the like Expired / Lapsed 1956-02-27 1959-08-25 0 Details
US2896629A Catheters Expired / Lapsed 1957-04-08 1959-07-28 0 Details
US2895773A Variable diameter tensed ring piston Expired / Lapsed 1956-10-22 1959-07-21 0 Details
US2894324A Wire cutter Expired / Lapsed 1958-08-11 1959-07-14 0 Details
US2892226A Mounting device for patterns Expired / Lapsed 1954-05-04 1959-06-30 0 Details
US2891481A Battery actuated fuel pump Expired / Lapsed 1957-02-19 1959-06-23 0 Details
US2889886A Well head Expired / Lapsed 1956-01-23 1959-06-09 0 Details
US2888680A Tool for drapery pins Expired / Lapsed 1958-01-28 1959-06-02 0 Details
US2888926A Adjustable sanitary belt and safety catamenial pad holder Expired / Lapsed 1956-11-23 1959-06-02 0 Details
US2888927A Method and apparatus for removal of superfluous hair Expired / Lapsed 1955-11-29 1959-06-02 0 Details
US2887974A Multiple portable support means Expired / Lapsed 1956-03-09 1959-05-26 0 Details
US2887111A Surgical forceps Expired / Lapsed 1957-10-03 1959-05-19 0 Details
US2887662A Phase shifting and modulating device Expired / Lapsed 1957-07-10 1959-05-19 0 Details
US2885758A Clothespin Expired / Lapsed 1958-05-15 1959-05-12 0 Details
US2883982A Leg brace Expired / Lapsed 1956-09-06 1959-04-28 0 Details
US2884524A Method and system employing photon absorption by a microwav… Expired / Lapsed 1955-08-01 1959-04-28 0 Details
US2882893A Combination mouth piece and air-way Expired / Lapsed 1957-05-23 1959-04-21 0 Details
US2880728A Ligature inserter Expired / Lapsed 1958-02-03 1959-04-07 0 Details
US2876778A Surgical instruments with drop lock Expired / Lapsed 1957-07-31 1959-03-10 0 Details
US2876768A Pressure-vacuum clysis unit Expired / Lapsed 1952-12-26 1959-03-10 0 Details
US2872721A Electron image multiplier apparatus Expired / Lapsed 1957-04-11 1959-02-10 0 Details
US2872858A Method and apparatus for pressurized supply and high veloci… Expired / Lapsed 1950-09-28 1959-02-10 0 Details
US2871151A Electrical cable Expired / Lapsed 1956-03-07 1959-01-27 0 Details
US2870765A Hypodermic needle mount Expired / Lapsed 1955-11-08 1959-01-27 0 Details
US2867213A Flutter valve for drainage of the pleural cavity Expired / Lapsed 1957-06-12 1959-01-06 0 Details
US2866068A Electrically heated butcher knife Expired / Lapsed 1956-05-14 1958-12-23 0 Details
US2866066A Animal bed Expired / Lapsed 1955-05-23 1958-12-23 0 Details
US2863036A Electrically heated butchering knives Expired / Lapsed 1957-06-19 1958-12-02 0 Details
US2858826A Vaginal speculum Expired / Lapsed 1957-01-22 1958-11-04 0 Details
US2856639A Method of encasing electric coils Expired / Lapsed 1953-04-13 1958-10-21 0 Details
US2855725A Method and means for automatically growing improved quality… Expired / Lapsed 1956-06-25 1958-10-14 0 Details
US2854982A Nasopharyngeal tube Expired / Lapsed 1958-01-22 1958-10-07 0 Details
US2854824A Mine roof bolt plate Expired / Lapsed 1956-06-14 1958-10-07 0 Details
US2855227A Railing assembly Expired / Lapsed 1954-09-20 1958-10-07 0 Details
US2855557A Self-trimming device for automatic pilots for adjusting con… Expired / Lapsed 1953-02-04 1958-10-07 0 Details
US2854580A Transistor oscillator frequency control Expired / Lapsed 1956-01-04 1958-09-30 0 Details
US2851652A Molecular amplification and generation systems and methods Expired / Lapsed 1956-05-21 1958-09-09 0 Details
US2850303A Double sealed compression fitting Expired / Lapsed 1955-08-12 1958-09-02 0 Details
US2849781A Method and machine for shrinking knitted fabrics Expired / Lapsed 1954-02-12 1958-09-02 0 Details
FR1161400A Automatic biopsy device Expired / Lapsed 1956-07-16 1958-08-28 0 Details
US2848992A Apparatus for controlling the pulse Expired / Lapsed 1955-08-30 1958-08-26 0 Details
US2848801A Method of making ceramic metal seal Expired / Lapsed 1954-01-04 1958-08-26 2 Details
US2846057A Devices for dosage control Expired / Lapsed 1954-02-09 1958-08-05 2 Details
US2839102A Dust collecting attachments for power saws Expired / Lapsed 1957-03-06 1958-06-17 0 Details
US2838683A Curve follower Expired / Lapsed 1955-07-18 1958-06-10 0 Details
US2835253A Surgical appliance Expired / Lapsed 1956-08-14 1958-05-20 0 Details
US2833284A Patellar needle Expired / Lapsed 1957-02-25 1958-05-06 0 Details
US2833274A Sphygmomanometer Expired / Lapsed 1955-01-17 1958-05-06 0 Details
US2833862A Multiplexing commutators Expired / Lapsed 1953-09-11 1958-05-06 0 Details
US2830491A Photographic ortho projector Expired / Lapsed 1953-12-29 1958-04-15 0 Details
US2830002A Lens structure Expired / Lapsed 1953-07-03 1958-04-08 1 Details
US2828744A Flexible needle for use in intravenous therapy Expired / Lapsed 1956-02-13 1958-04-01 0 Details
US2829322A Automatic control mechanism Expired / Lapsed 1955-05-09 1958-04-01 0 Details
US2828979A Flanged pipes coupled by resilient sealing gasket having ve… Expired / Lapsed 1953-01-19 1958-04-01 0 Details
US2828101A Pneumatic valve Expired / Lapsed 1955-07-20 1958-03-25 0 Details
US2826693A Pulse generator Expired / Lapsed 1955-02-03 1958-03-11 0 Details
US2825224A Swimming stroke development indicator Expired / Lapsed 1956-06-29 1958-03-04 0 Details
US2825260A Optical image forming devices Expired / Lapsed 1954-11-19 1958-03-04 0 Details
US2824642A Package for surgical sutures Expired / Lapsed 1956-07-05 1958-02-25 0 Details
US2824485A Tennis string or like article Expired / Lapsed 1953-11-20 1958-02-25 0 Details
US2824280A Rectangular transmission line absorption cell Expired / Lapsed 1954-08-16 1958-02-18 0 Details
US2822808A Disposable specimen collector Expired / Lapsed 1956-11-20 1958-02-11 0 Details
US2822192A Pipe coupling with socketed inflatable sealing member Expired / Lapsed 1953-12-07 1958-02-04 0 Details
US2821188A Apparatus for the measurement of arterial pressure Expired / Lapsed 1954-04-26 1958-01-28 0 Details
US2820907A Microfilm apparatus Expired / Lapsed 1951-07-27 1958-01-21 0 Details
US2819718A Drainage tube Expired / Lapsed 1953-07-16 1958-01-14 0 Details
US2818852A Spring-pressed surgical instrument Expired / Lapsed 1956-06-27 1958-01-07 0 Details
US2818726A Automatic calibrating system for pressure transducers Expired / Lapsed 1955-10-17 1958-01-07 0 Details
US2818069A Devices for mounting a fecal pouch Expired / Lapsed 1954-11-15 1957-12-31 0 Details
US2813573A Method and apparatus for making corrugated flexible hose Expired / Lapsed 1954-07-02 1957-11-19 0 Details
US2813230A Velocity-dependent measuring and control systems Expired / Lapsed 1954-01-08 1957-11-12 0 Details
US2811979A Shuttle valve Expired / Lapsed 1955-02-24 1957-11-05 0 Details
US2811132A Apparatus for heating and dipping articles in liquid compos… Expired / Lapsed 1955-10-27 1957-10-29 0 Details
US2808055A Surgical stitching instruments Expired / Lapsed 1953-06-25 1957-10-01 0 Details
US2804610A Fire alarm system Expired / Lapsed 1956-07-03 1957-08-27 2 Details
US2802086A Sealing device for heat sealing machines of the thermal imp… Expired / Lapsed 1955-10-04 1957-08-06 0 Details
US2801819A Automatic weighing apparatus Expired / Lapsed 1950-09-07 1957-08-06 0 Details
US2799222A Electronic apparatus for high-speed printers Expired / Lapsed 1956-08-27 1957-07-16 0 Details
US2799644A Apparatus for transferring electrolytes from one solution i… Expired / Lapsed 1955-11-18 1957-07-16 2 Details
US2799273A Haemostatic catheter Expired / Lapsed 1955-03-22 1957-07-16 0 Details
US2797712A Method of making woven fabric test strips of uniform width Expired / Lapsed 1954-03-12 1957-07-02 0 Details
US2794277A All-plastic marker for animal Expired / Lapsed 1955-01-06 1957-06-04 0 Details
US2793842A Beverage stirrer Expired / Lapsed 1956-02-16 1957-05-28 0 Details
US2793661A Power driven reciprocating saw unit Expired / Lapsed 1954-10-04 1957-05-28 0 Details
US2792566A Liquid level detector Expired / Lapsed 1953-12-11 1957-05-14 0 Details
US2790202A Method and apparatus for manufacturing pencils Expired / Lapsed 1952-03-31 1957-04-30 0 Details
US2788787A Surgical instrument for extirpation of varicose veins Expired / Lapsed 1955-09-16 1957-04-16 0 Details
US2786991A Illumination failure warning device Expired / Lapsed 1955-10-19 1957-03-26 0 Details
US2785600A Target plotting projector unit device Expired / Lapsed 1955-03-30 1957-03-19 0 Details
US2785797A Phonograph record container Expired / Lapsed 1954-12-08 1957-03-19 0 Details
US2785453A Separable fastener structure Expired / Lapsed 1952-06-11 1957-03-19 0 Details
US2784987A Pipe coupling with detent means Expired / Lapsed 1954-02-03 1957-03-12 0 Details
US2782429A Life-saving apparatus Expired / Lapsed 1954-10-05 1957-02-26 0 Details
US2779976A Method of making hose Expired / Lapsed 1956-04-04 1957-02-05 0 Details
US2779334A Vein stripper Expired / Lapsed 1954-08-23 1957-01-29 0 Details
US2779336A Electro-therapeutic apparatus Expired / Lapsed 1954-07-13 1957-01-29 0 Details
US2778328A Portable sewing-machine Expired / Lapsed 1954-10-19 1957-01-22 0 Details
US2777724A Filter pad pick-up device Expired / Lapsed 1952-11-24 1957-01-15 0 Details
US2775272A Portable power driven reciprocable cutting tool Expired / Lapsed 1953-11-27 1956-12-25 0 Details
US2774922A Step motor and control system therefor Expired / Lapsed 1952-06-20 1956-12-18 0 Details
US2771276A Metallic railing structure Expired / Lapsed 1954-02-08 1956-11-20 0 Details
US2770505A Bearing Expired / Lapsed 1953-03-19 1956-11-13 0 Details
US2767389A Seismic exploration apparatus Expired / Lapsed 1950-11-13 1956-10-16 0 Details
US2766444A Electronic character displaying apparatus Expired / Lapsed 1953-09-01 1956-10-09 0 Details
US2763316A Method of making a multi-layer braid-reinforced hose Expired / Lapsed 1955-05-31 1956-09-18 0 Details
US2760230A Plastic material extrusion head Expired / Lapsed 1955-07-05 1956-08-28 0 Details
US2759477A Genito-urinary appliances Expired / Lapsed 1953-07-13 1956-08-21 0 Details
US2759428A Centrifugal pump Expired / Lapsed 1952-12-02 1956-08-21 0 Details
US2756752A Surgical instrument Expired / Lapsed 1953-12-23 1956-07-31 0 Details
US2753808A Centrifugal impeller Expired / Lapsed 1950-02-15 1956-07-10 0 Details
US2752558A Electric transducer Expired / Lapsed 1953-04-22 1956-06-26 0 Details
US2751127A Liquid soap dispenser Expired / Lapsed 1951-08-09 1956-06-19 0 Details
US2747616A Pipe structure Expired / Lapsed 1951-07-07 1956-05-29 0 Details
US2744981A Means for controlling current flow in electric circuits Expired / Lapsed 1953-06-16 1956-05-08 0 Details
US2744521A Method and system for observing motion phenomena in living … Expired / Lapsed 1952-08-05 1956-05-08 0 Details
US2741915A Apparatus for pumping and weighing wells Expired / Lapsed 1952-10-24 1956-04-17 2 Details
US2739727A Carrying containers Expired / Lapsed 1952-11-08 1956-03-27 0 Details
US2739537A Motor driven pump Expired / Lapsed 1952-10-24 1956-03-27 0 Details
US2739922A Mixtures of polymeric n-vinyl pyrrolidone and halogens Expired / Lapsed 1952-03-13 1956-03-27 2 Details
US2729210A Medical instrument Expired / Lapsed 1954-06-22 1956-01-03 0 Details
US2728225A Thermal flowmeter Expired / Lapsed 1953-03-12 1955-12-27 0 Details
US2727278A Method of making molded composite article Expired / Lapsed 1952-11-21 1955-12-20 2 Details
US2726689A Motor attachment device for power tools Expired / Lapsed 1953-03-30 1955-12-13 0 Details
US2724171A Activation of ferroelectrics Expired / Lapsed 1953-12-11 1955-11-22 2 Details
US2723666A Laminated mitten for surgical and obstetrical instruments Expired / Lapsed 1954-08-12 1955-11-15 0 Details
US2723492A Remotely controllable electric toy Expired / Lapsed 1952-11-21 1955-11-15 0 Details
US2721555A Dermatome Expired / Lapsed 1952-12-03 1955-10-25 0 Details
US2721267A Electronic temperature indicator Expired / Lapsed 1952-04-05 1955-10-18 0 Details
US2720128A Gripping dies for pipe tongs and the like Expired / Lapsed 1953-05-25 1955-10-11 0 Details
US2716722A Temperature stable solid state electronic devices Expired / Lapsed 1954-09-02 1955-08-30 0 Details
US2716216A Short-circuit detectors Expired / Lapsed 1952-08-01 1955-08-23 0 Details
US2714721A Artificial corneal implants Expired / Lapsed 1953-01-23 1955-08-09 0 Details
US2714771A Multi-ply paper foot covering Expired / Lapsed 1951-05-16 1955-08-09 0 Details
US2714330A Navigational indicating and position projection instrument Expired / Lapsed 1952-08-25 1955-08-02 0 Details
US2713202A Bite tray Expired / Lapsed 1953-06-02 1955-07-19 0 Details
US2713130A Control circuit Expired / Lapsed 1953-12-02 1955-07-12 0 Details
US2712225A Methods of and apparatus for making double faced fleece kni… Expired / Lapsed 1951-05-11 1955-07-05 0 Details
US2712263A Manufacture of strings Expired / Lapsed 1949-09-07 1955-07-05 0 Details
US2711734A Surgical instrument Expired / Lapsed 1954-02-01 1955-06-28 0 Details
US2711872A Baby bottle holder Expired / Lapsed 1953-04-02 1955-06-28 0 Details
US2711741A Circular file Expired / Lapsed 1949-03-09 1955-06-28 0 Details
US2710000A Cutting instrument Expired / Lapsed 1952-02-19 1955-06-07 0 Details
US2709290A Plastic closures Expired / Lapsed 1951-06-26 1955-05-31 0 Details
US2708722A Pulse transfer controlling device Expired / Lapsed 1949-10-21 1955-05-17 0 Details
US2707783A Applicator for inserting preformed metallic sutures Expired / Lapsed 1950-09-20 1955-05-10 0 Details
US2704936A Submarine bathythermograph Expired / Lapsed 1953-10-22 1955-03-29 0 Details
US2703437A Method of making abrasive articles Expired / Lapsed 1950-09-01 1955-03-08 0 Details
US2699779A Wet dressing for medical uses Expired / Lapsed 1952-05-17 1955-01-18 0 Details
US2699960A Casing for collecting leakage from a pipe coupling Expired / Lapsed 1951-10-10 1955-01-18 0 Details
US2699959A Bellows type expansion joint for tubular conduits Expired / Lapsed 1950-12-07 1955-01-18 0 Details
US2699465A Device for indicating the cessation of cardiac function Expired / Lapsed 1952-10-16 1955-01-11 0 Details
US2697777A Lamp adapter Expired / Lapsed 1953-01-19 1954-12-21 0 Details
US2696212A Hypodermic syringe Expired / Lapsed 1951-09-28 1954-12-07 0 Details
US2695607A Self-retaining bone retractor Expired / Lapsed 1951-04-24 1954-11-30 0 Details
US2693933A Stop valve Expired / Lapsed 1951-12-17 1954-11-09 0 Details
US2693182A Oro-tracheal tube positioner and retainer Expired / Lapsed 1953-09-09 1954-11-02 0 Details
US2692599A Identifying holder for surgical ligatures Expired / Lapsed 1953-11-02 1954-10-26 0 Details
US2692621A Carcass splitting saw Expired / Lapsed 1948-08-18 1954-10-26 0 Details
US2692326A Electrically heated shoe Expired / Lapsed 1952-11-15 1954-10-19 0 Details
US2690193A Pipe clamp Expired / Lapsed 1948-01-26 1954-09-28 0 Details
US2682836A Fuel pump Expired / Lapsed 1950-04-20 1954-07-06 0 Details
US2682227A Hydraulic control apparatus Expired / Lapsed 1950-07-11 1954-06-29 0 Details
US2680376A Differential pressure measuring device with ring dynamometer Expired / Lapsed 1952-01-10 1954-06-08 0 Details
US2680800A Radiant heating element Expired / Lapsed 1947-07-17 1954-06-08 0 Details
US2679929A Record holding and display device Expired / Lapsed 1952-06-30 1954-06-01 0 Details
US2679249A Instrument for surgical operations Expired / Lapsed 1952-08-05 1954-05-25 0 Details
US2677122A Control circuit Expired / Lapsed 1950-07-13 1954-04-27 0 Details
US2676702A Sanitary package Expired / Lapsed 1950-06-22 1954-04-27 0 Details
US2675823A Backflow preventer Expired / Lapsed 1949-09-07 1954-04-20 0 Details
US2674490A Method and apparatus for irrigating plants Expired / Lapsed 1948-06-24 1954-04-06 0 Details
US2672032A Carcass freezing device Expired / Lapsed 1951-10-19 1954-03-16 0 Details
US2669988A Teeth protector Expired / Lapsed 1951-05-08 1954-02-23 0 Details
US2669642A Electrically heated marking device Expired / Lapsed 1951-11-13 1954-02-16 0 Details
US2668787A Method of making a bonded permeable article Expired / Lapsed 1951-01-09 1954-02-09 2 Details
US2668086A Lubricant container for bearings Expired / Lapsed 1951-10-19 1954-02-02 0 Details
US2667117A Adjustable colander for cooking and serving vegetables and … Expired / Lapsed 1950-06-02 1954-01-26 0 Details
US2665692A Suturing forceps Expired / Lapsed 1951-12-10 1954-01-12 0 Details
US2665687A Syringe assembly Expired / Lapsed 1950-08-02 1954-01-12 0 Details
US2664206A Magazine display fixture Expired / Lapsed 1950-08-22 1953-12-29 0 Details
US2662724A Check valve Expired / Lapsed 1948-12-27 1953-12-15 0 Details
US2661026A Oil hose Expired / Lapsed 1948-11-09 1953-12-01 0 Details
US2659969A Plaster cast cutting machine Expired / Lapsed 1950-04-15 1953-11-24 0 Details
US2660342A Burette with variable capacity Expired / Lapsed 1949-04-01 1953-11-24 0 Details
US2655154A Valvulotome Expired / Lapsed 1952-12-05 1953-10-13 0 Details
US2654857A Antenna accessory Expired / Lapsed 1949-10-27 1953-10-06 0 Details
US2652832A Needle holder Expired / Lapsed 1950-12-27 1953-09-22 0 Details
US2649999A Caulking compound tube Expired / Lapsed 1952-01-28 1953-08-25 0 Details
DE885917C Permanent catheter made of elastic material Expired / Lapsed 1951-05-17 1953-08-10 0 Details
US2647652A Closure cap Expired / Lapsed 1947-08-14 1953-08-04 0 Details
US2646042A Medical apparatus Expired / Lapsed 1951-05-18 1953-07-21 0 Details
US2645225A Adjustable supporting device for sanitary napkins and the l… Expired / Lapsed 1951-03-14 1953-07-14 0 Details
US2643655A Hypodermic and other syringes or drenchers Expired / Lapsed 1950-09-12 1953-06-30 0 Details
US2643433A Fastening device Expired / Lapsed 1950-04-13 1953-06-30 0 Details
US2644147A Electrical signal system for traffic lights Expired / Lapsed 1949-03-04 1953-06-30 0 Details
US2643465A Cleaning and drying apparatus Expired / Lapsed 1948-11-06 1953-06-30 0 Details
US2644150A Automatic traffic directing device for garages Expired / Lapsed 1948-06-26 1953-06-30 0 Details
US2642866A Blood container and method of making the same Expired / Lapsed 1951-02-03 1953-06-23 0 Details
US2642228A Pulsing electronic measuring and control apparatus Expired / Lapsed 1947-12-30 1953-06-16 0 Details
US2641253A Anesthesia apparatus Expired / Lapsed 1951-08-07 1953-06-09 0 Details
US2640936A Method and apparatus for indicating the movement of material Expired / Lapsed 1950-02-07 1953-06-02 0 Details
US2640260A Retractable pocket knife Expired / Lapsed 1948-04-30 1953-06-02 0 Details
US2638901A Surgical clamp Expired / Lapsed 1951-07-30 1953-05-19 0 Details
US2638898A Stoma receiver Expired / Lapsed 1950-07-07 1953-05-19 0 Details
US2637922A Fowl marker Expired / Lapsed 1949-06-04 1953-05-12 0 Details
US2636926A Microwave spectrography Expired / Lapsed 1948-04-13 1953-04-28 0 Details
US2636129A Solar engine Expired / Lapsed 1948-05-08 1953-04-21 0 Details
US2633154A Valve Expired / Lapsed 1946-11-23 1953-03-31 0 Details
US2632356A Staple Expired / Lapsed 1949-11-21 1953-03-24 0 Details
US2631014A Guard rail Expired / Lapsed 1950-09-27 1953-03-10 0 Details
US2629908A Hose clamp Expired / Lapsed 1950-12-11 1953-03-03 0 Details
US2625682A Stapling mechanism Expired / Lapsed 1950-01-23 1953-01-20 0 Details
US2625760A Garden marker Expired / Lapsed 1949-06-27 1953-01-20 0 Details
US2626346A Fluorescent light fixture for circular fluorescent lamps Expired / Lapsed 1949-01-26 1953-01-20 0 Details
US2625932A Blood transfer apparatus Expired / Lapsed 1949-01-10 1953-01-20 0 Details
US2622991A Process for printing on thermoplastics Expired / Lapsed 1949-07-29 1952-12-23 2 Details
US2622776A Tailor tack needle Expired / Lapsed 1948-02-28 1952-12-23 0 Details
US2622607A Article carrying case and washer Expired / Lapsed 1947-07-23 1952-12-23 0 Details
US2621306A Time-delay circuit Expired / Lapsed 1943-08-03 1952-12-09 0 Details
US2620061A Pocket article dispensing container Expired / Lapsed 1949-10-14 1952-12-02 0 Details
US2620008A Deformable means for interlocking machine elements Expired / Lapsed 1948-12-07 1952-12-02 0 Details
US2616421A Nozzle in the form of cervical caps Expired / Lapsed 1950-05-18 1952-11-04 0 Details
US2615598A Pivoted actuator for both fluid inlet and pressure relief v… Expired / Lapsed 1948-05-03 1952-10-28 0 Details
US2614803A Submarine drilling and pumping apparatus Expired / Lapsed 1950-07-18 1952-10-21 0 Details
US2614416A Force measuring system employing piezocapacitors Expired / Lapsed 1950-02-16 1952-10-21 0 Details
US2611366A Suture gun Expired / Lapsed 1951-11-20 1952-09-23 0 Details
US2611321A Vessel and fluid propelling device Expired / Lapsed 1946-08-29 1952-09-23 0 Details
US2611822A Coupling device Expired / Lapsed 1945-02-03 1952-09-23 0 Details
US2610626A Syringe Expired / Lapsed 1951-07-27 1952-09-16 0 Details
US2610631A Ligator Expired / Lapsed 1949-11-02 1952-09-16 0 Details
US2610220A Storage battery electrode Expired / Lapsed 1948-07-24 1952-09-09 0 Details
US2607446A Replaceable insert Expired / Lapsed 1952-01-08 1952-08-19 0 Details
US2606555A Surgical tube, drain, and valve holder Expired / Lapsed 1949-12-31 1952-08-12 0 Details
US2607004A Radio transmission system Expired / Lapsed 1947-09-12 1952-08-12 0 Details
US2606690A Method of dispensing liquids and apparatus therefor Expired / Lapsed 1947-01-29 1952-08-12 0 Details
US2604685A Double tube trocar device Expired / Lapsed 1948-12-22 1952-07-29 0 Details
US2604005A Projection light source and light beam modifier combination Expired / Lapsed 1949-01-21 1952-07-22 0 Details
US2604004A Measuring device employing light interference fringes Expired / Lapsed 1947-08-13 1952-07-22 0 Details
US2602042A Processing methyl cellulose and the products thereof Expired / Lapsed 1947-08-16 1952-07-01 1 Details
US2601393A Selective remote control system Expired / Lapsed 1948-05-27 1952-06-24 0 Details
US2599604A Filter element Expired / Lapsed 1949-07-13 1952-06-10 0 Details
US2599802A Rotary horizontal file Expired / Lapsed 1946-04-05 1952-06-10 0 Details
US2599523A Shield for bunions and corns Expired / Lapsed 1949-07-27 1952-06-03 0 Details
US2599226A Loop forming device for stitch forming mechanism Expired / Lapsed 1948-10-07 1952-06-03 0 Details
US2597975A Method of manufacturing hose of synthetic thermoplastic mat… Expired / Lapsed 1948-02-19 1952-05-27 2 Details
US2592722A Adjustable width gate Expired / Lapsed 1950-03-24 1952-04-15 0 Details
US2591046A Hypodermic syringe assembly Expired / Lapsed 1948-10-18 1952-04-01 0 Details
US2590876A Electrode for electrotherapeutic treatments Expired / Lapsed 1947-12-20 1952-04-01 0 Details
US2590929A Railing Expired / Lapsed 1947-11-19 1952-04-01 0 Details
US2591617A Automatic telemetering system Expired / Lapsed 1947-10-04 1952-04-01 0 Details
US2589349A Magnetic key case Expired / Lapsed 1948-11-10 1952-03-18 0 Details
US2589821A Reed holder Expired / Lapsed 1946-08-12 1952-03-18 0 Details
US2589998A Electronic control for monorail hoists or the like Expired / Lapsed 1946-07-11 1952-03-18 0 Details
US2587910A Tall-tube for controlled intubation and drainage of the com… Expired / Lapsed 1949-12-23 1952-03-04 0 Details
US2585443A Electric heating unit Expired / Lapsed 1949-03-15 1952-02-12 0 Details
US2584302A Electric heating device Expired / Lapsed 1950-04-06 1952-02-05 0 Details
US2583853A Diathermy electrode Expired / Lapsed 1950-08-08 1952-01-29 0 Details
US2583561A Electronic air flow indicator Expired / Lapsed 1946-10-23 1952-01-29 0 Details
US2582957A Communication system Expired / Lapsed 1945-11-26 1952-01-22 0 Details
US2582995A Closure joint Expired / Lapsed 1943-07-06 1952-01-22 0 Details
US2581564A Atraumatic surgical needle Expired / Lapsed 1949-10-20 1952-01-08 0 Details
US2580133A Diaphragm type pessary Expired / Lapsed 1950-08-07 1951-12-25 0 Details
US2575572A Rolling chapel tent construction Expired / Lapsed 1949-11-14 1951-11-20 0 Details
US2575268A Printing telegraph system Expired / Lapsed 1949-05-23 1951-11-13 0 Details
US2573748A Acoustic ranging system, including magnetic recording Expired / Lapsed 1944-01-25 1951-11-06 0 Details
US2573639A Manufacture of porous articles from trifluorochloroethylene… Expired / Lapsed 1949-12-02 1951-10-30 0 Details
US2571771A Insulating splice protector Expired / Lapsed 1948-02-16 1951-10-16 0 Details
US2571575A Steam cleaner Expired / Lapsed 1947-07-03 1951-10-16 0 Details
US2570382A Leg brace knee joint Expired / Lapsed 1949-09-02 1951-10-09 0 Details
US2569622A Adjustable support for mirrors Expired / Lapsed 1950-02-24 1951-10-02 0 Details
US2569714A Strain gauge Expired / Lapsed 1945-03-12 1951-10-02 0 Details
US2568566A Surgical therapeutic appliance Expired / Lapsed 1946-05-06 1951-09-18 0 Details
US2566625A Ligating instrument Expired / Lapsed 1950-08-24 1951-09-04 0 Details
US2565336A Miniature packet Expired / Lapsed 1945-12-08 1951-08-21 0 Details
US2562328A Irrigation device Expired / Lapsed 1948-05-25 1951-07-31 0 Details
US2562552A Measuring pump with flexible tubing Expired / Lapsed 1947-07-30 1951-07-31 0 Details
US2561225A Awning Expired / Lapsed 1949-04-08 1951-07-17 0 Details
US2560915A Sump drain Expired / Lapsed 1947-04-05 1951-07-17 0 Details
US2559993A Handle with recess for pivoted blades Expired / Lapsed 1948-08-16 1951-07-10 0 Details
US2559914A Process for the production of cellulose sulfuric acid esters Expired / Lapsed 1946-12-13 1951-07-10 2 Details
US2558225A Curl holding device Expired / Lapsed 1949-03-17 1951-06-26 0 Details
US2557022A Method of preparing record cards with conductive marks Expired / Lapsed 1949-10-31 1951-06-12 0 Details
US2556602A Electrical coil structure for transformers Expired / Lapsed 1948-04-10 1951-06-12 0 Details
US2555385A Metal polyactyllactate polymers Expired / Lapsed 1947-06-20 1951-06-05 2 Details
US2554636A Wrapping method Expired / Lapsed 1949-05-13 1951-05-29 0 Details
US2555133A Hand perforating or like tool primarily for puncturing catt… Expired / Lapsed 1949-03-14 1951-05-29 0 Details
US2554772A Water conditioner Expired / Lapsed 1948-12-20 1951-05-29 0 Details
US2552259A Electrical heating element Expired / Lapsed 1948-10-12 1951-05-08 0 Details
US2549836A Electrode-carrying headgear for electroencephalographic ana… Expired / Lapsed 1946-06-14 1951-04-24 0 Details
US2547838A Record bearing medium and methods of preparation Expired / Lapsed 1948-11-26 1951-04-03 0 Details
US2545599A Reed holder Expired / Lapsed 1949-02-04 1951-03-20 0 Details
US2545796A Quick-release coupling for highpressure fluid lines Expired / Lapsed 1947-10-08 1951-03-20 0 Details
US2545464A Pulse group discriminator Expired / Lapsed 1945-10-09 1951-03-20 0 Details
US2545243A Package encased in plastic sheet material and method of mak… Expired / Lapsed 1948-07-10 1951-03-13 4 Details
US2544738A Force measuring device Expired / Lapsed 1945-08-02 1951-03-13 0 Details
US2545045A Threaded insert protector Expired / Lapsed 1945-03-12 1951-03-13 0 Details
US2541144A Dispenser for sheet material Expired / Lapsed 1948-06-09 1951-02-13 0 Details
US2541520A Method and apparatus for indicate or observe progressive ex… Expired / Lapsed 1947-01-13 1951-02-13 0 Details
US2541542A Trocar for biopsia Expired / Lapsed 1946-12-23 1951-02-13 0 Details
US2541595A Container Expired / Lapsed 1946-07-09 1951-02-13 0 Details
US2540152A Recovery of light elemental gases Expired / Lapsed 1949-12-10 1951-02-06 2 Details
US2536520A Fuse adapter Expired / Lapsed 1949-05-27 1951-01-02 0 Details
US2536602A Automatic flange system Expired / Lapsed 1944-07-06 1951-01-02 0 Details
US2535588A Fluid-driven impact mechanism Expired / Lapsed 1945-08-20 1950-12-26 0 Details
US2534712A Apparatus for measuring air speed Expired / Lapsed 1945-11-30 1950-12-19 0 Details
US2533242A Data transformation system Expired / Lapsed 1949-12-27 1950-12-12 0 Details
US2533626A Hinge structure Expired / Lapsed 1947-11-03 1950-12-12 0 Details
US2533852A Process and apparatus for preparing concrete Expired / Lapsed 1945-08-06 1950-12-12 0 Details
US2533888A Cleaning or laundry machine Expired / Lapsed 1943-12-23 1950-12-12 0 Details
US2532551A Biconical electromagnetic horn antenna Expired / Lapsed 1945-02-19 1950-12-05 0 Details
US2530486A Forced flow portable air heater for mounting upon the exter… Expired / Lapsed 1948-04-06 1950-11-21 0 Details
US2529599A Brake pin tool Expired / Lapsed 1949-06-16 1950-11-14 0 Details
US2528528A Method of and apparatus for forming plastic Expired / Lapsed 1945-06-15 1950-11-07 0 Details
US2527256A Connector for brushes, brooms, and the like Expired / Lapsed 1947-11-07 1950-10-24 0 Details
US2527477A Control of the velocity of phase propagation of electric wa… Expired / Lapsed 1944-02-01 1950-10-24 0 Details
US2525329A Trocar apparatus Expired / Lapsed 1948-09-16 1950-10-10 0 Details
US2525381A Contact-type electrode holder Expired / Lapsed 1947-09-25 1950-10-10 0 Details
US2525544A Cathode-ray tube control circuits Expired / Lapsed 1947-02-20 1950-10-10 0 Details
US2525587A Spring microbalance Expired / Lapsed 1946-03-01 1950-10-10 0 Details
US2522675A Ventilating means for electric motors Expired / Lapsed 1948-09-15 1950-09-19 0 Details
US2522542A Heavy current resistor Expired / Lapsed 1948-07-02 1950-09-19 0 Details
US2522527A Spinning gun for the production of filaments and method of … Expired / Lapsed 1946-10-09 1950-09-19 0 Details
US2522853A Orthopedic appliance Expired / Lapsed 1946-01-04 1950-09-19 0 Details
US2522456A Internal-combustion engine Expired / Lapsed 1948-11-13 1950-09-12 0 Details
US2522222A Antenna for aircraft Expired / Lapsed 1942-12-15 1950-09-12 0 Details
US2521161A Surgical cutting instrument Expired / Lapsed 1948-08-07 1950-09-05 0 Details
US2521282A Electrically heated plastics press Expired / Lapsed 1947-11-21 1950-09-05 0 Details
US2520922A Automatic navigator and indicator Expired / Lapsed 1943-05-25 1950-09-05 0 Details
US2517806A Combination toothbrush handle and dental floss holder Expired / Lapsed 1947-03-10 1950-08-08 0 Details
US2516456A Control attachment for weighing machines Expired / Lapsed 1948-08-12 1950-07-25 0 Details
US2515254A Remote-control system Expired / Lapsed 1946-12-11 1950-07-18 0 Details
US2515412A Printing and weighing apparatus Expired / Lapsed 1944-11-23 1950-07-18 0 Details
US2513537A Electric integrator using a motor with velocity feedback Expired / Lapsed 1947-08-07 1950-07-04 0 Details
US2512569A Hypodermic needle Expired / Lapsed 1947-09-26 1950-06-20 0 Details
US2511544A Diol-dilsocyanate high molecular polymerization products Expired / Lapsed 1938-11-08 1950-06-13 1 Details
US2509500A Reeling device for wire records Expired / Lapsed 1945-03-30 1950-05-30 0 Details
US2508950A Fluid apparatus Expired / Lapsed 1948-08-17 1950-05-23 0 Details
US2508400A Frequency-modulated direction- and range-finding apparatus Expired / Lapsed 1945-01-24 1950-05-23 0 Details
US2505757A High capacity, low inertia check valve for jet propulsion m… Expired / Lapsed 1945-04-24 1950-05-02 0 Details
US2504202A Thumb forcep and needle holder Expired / Lapsed 1948-12-14 1950-04-18 0 Details
US2502545A Cigarette filter tip Expired / Lapsed 1946-08-19 1950-04-04 0 Details
US2502772A Ruffled sheeting and the method of producing the same Expired / Lapsed 1946-05-21 1950-04-04 0 Details
US2501704A Negative feed-back vacuum tube voltmeter Expired / Lapsed 1946-02-13 1950-03-28 0 Details
US2501212A Receiver and transmitter telephone desk set Expired / Lapsed 1948-11-30 1950-03-21 0 Details
US2500953A Magnetoresistor Expired / Lapsed 1948-09-24 1950-03-21 0 Details
US2501151A Cuff link Expired / Lapsed 1946-05-11 1950-03-21 0 Details
US2500400A Axial flow pump Expired / Lapsed 1946-10-25 1950-03-14 0 Details
US2500606A Air ventilating device Expired / Lapsed 1946-09-27 1950-03-14 0 Details
US2499544A Window operator with a combined temperature and rain respon… Expired / Lapsed 1948-05-07 1950-03-07 0 Details
US2499414A Tampon Expired / Lapsed 1947-04-15 1950-03-07 0 Details
US2498831A Pipe joint Expired / Lapsed 1947-10-18 1950-02-28 0 Details
US2496309A Lever actuated pivoted jaw wrench Expired / Lapsed 1946-04-04 1950-02-07 0 Details
US2496175A Stoma receiver Expired / Lapsed 1946-06-21 1950-01-31 0 Details
US2495295A Textile washer and drier utilizing compression waves Expired / Lapsed 1947-11-15 1950-01-24 0 Details
US2495028A Shoulder pad Expired / Lapsed 1948-01-27 1950-01-17 0 Details
US2494792A Skull clamp Expired / Lapsed 1947-03-03 1950-01-17 0 Details
US2494922A Apparatus for selectively positioning a load Expired / Lapsed 1943-11-23 1950-01-17 0 Details
US2494393A Removable appliance for use as an artificial dam in cases o… Expired / Lapsed 1949-02-05 1950-01-10 0 Details
US2494243A Pressure ribbon-type gas burner Expired / Lapsed 1944-07-31 1950-01-10 0 Details
US2492411A Picture grip Expired / Lapsed 1947-05-02 1949-12-27 0 Details
US2492384A Stomach irrigation tube Expired / Lapsed 1947-03-29 1949-12-27 0 Details
US2492926A Color television system Expired / Lapsed 1945-10-05 1949-12-27 0 Details
US2491396A Adhesive thread and fabric Expired / Lapsed 1947-08-04 1949-12-13 0 Details
US2490363A Hose coupling Expired / Lapsed 1946-10-29 1949-12-06 0 Details
US2490659A Solar heated vacuum still Expired / Lapsed 1944-04-24 1949-12-06 0 Details
US2488998A Motor-driven filing mechanism Expired / Lapsed 1945-09-04 1949-11-22 0 Details
US2487681A Electrical gauging device Expired / Lapsed 1945-10-18 1949-11-08 0 Details
US2482782A Pulse discrimination system Expired / Lapsed 1947-02-13 1949-09-27 0 Details
US2483116A Underwater breathing apparatus Expired / Lapsed 1946-10-31 1949-09-27 0 Details
US2483157A Mouth-protective bit Expired / Lapsed 1946-06-17 1949-09-27 0 Details
US2483234A Method of making hollow rubber articles Expired / Lapsed 1945-08-11 1949-09-27 0 Details
US2482558A Pipe joint Expired / Lapsed 1946-10-26 1949-09-20 0 Details
US2481419A Surgical dressing Expired / Lapsed 1945-02-13 1949-09-06 0 Details
US2475742A Apparatus for producing reentrant magnetic records Expired / Lapsed 1946-04-17 1949-07-12 0 Details
US2475635A Multiple conduit Expired / Lapsed 1945-01-08 1949-07-12 0 Details
US2474412A Soapless-germicidally active detergent Expired / Lapsed 1947-09-16 1949-06-28 0 Details
US2473556A Device for controlling oscillating circuits Expired / Lapsed 1943-03-15 1949-06-21 0 Details
US2472214A Pressure responsive electrical resistor Expired / Lapsed 1947-10-22 1949-06-07 0 Details
US2470840A Shoe heel plate and skate fastening means Expired / Lapsed 1945-10-08 1949-05-24 0 Details
US2470202A Filtering process Expired / Lapsed 1947-04-19 1949-05-17 0 Details
US2467447A Hot-water bottle Expired / Lapsed 1945-03-06 1949-04-19 0 Details
US2466826A Detergent rubber compound and process of producing same Expired / Lapsed 1948-11-10 1949-04-12 0 Details
US2466772A Injection meat-curing machine Expired / Lapsed 1947-06-13 1949-04-12 0 Details
US2466317A Tube coupling Expired / Lapsed 1946-06-26 1949-04-05 0 Details
US2465662A Receptacle closure Expired / Lapsed 1944-02-07 1949-03-29 0 Details
US2465254A Apparatus for producing false selvages upon woven fabrics Expired / Lapsed 1947-07-03 1949-03-22 0 Details
US2464933A Gastrointestinal tube Expired / Lapsed 1946-09-28 1949-03-22 0 Details
US2462216A Hydraulic balance Expired / Lapsed 1944-12-30 1949-02-22 0 Details
US2460918A Method-of and apparatus for cutting and the like Expired / Lapsed 1942-12-12 1949-02-08 0 Details
US2460480A Method of and apparatus for producing artificial sausage sk… Expired / Lapsed 1941-12-02 1949-02-01 0 Details
US2457303A Hair curl pin Expired / Lapsed 1946-08-31 1948-12-28 0 Details
US2457454A Softball kit Expired / Lapsed 1946-06-07 1948-12-28 0 Details
US2455655A Bone saw Expired / Lapsed 1946-11-01 1948-12-07 0 Details
US2454996A Spring holding device for vehicles Expired / Lapsed 1945-06-27 1948-11-30 0 Details
US2455224A Antenna Expired / Lapsed 1944-06-16 1948-11-30 0 Details
US2454625A Insulated electrical conductor and method of fabricating th… Expired / Lapsed 1947-04-09 1948-11-23 0 Details
US2454557A No-twist self-locking coupling Expired / Lapsed 1944-01-12 1948-11-23 0 Details
US2454243A Lighting fixture Expired / Lapsed 1945-09-07 1948-11-16 0 Details
US2454223A Rotatable separable fastener Expired / Lapsed 1944-08-09 1948-11-16 0 Details
US2452945A Sealed electric motor and transmission Expired / Lapsed 1945-05-09 1948-11-02 0 Details
US2452278A Tube coupling device Expired / Lapsed 1945-06-29 1948-10-26 0 Details
US2449150A Portable indicator device for ordinary two prong plugs Expired / Lapsed 1945-11-19 1948-09-14 0 Details
US2448432A System of threading needles Expired / Lapsed 1946-07-01 1948-08-31 0 Details
US2448113A Traffic actuated signal controller Expired / Lapsed 1946-03-14 1948-08-31 0 Details
US2448401A Carton having integrally formed cushioning means Expired / Lapsed 1944-10-20 1948-08-31 0 Details
US2448485A Hose Expired / Lapsed 1943-12-11 1948-08-31 0 Details
US2447127A Electric treatment appliance Expired / Lapsed 1944-01-19 1948-08-17 0 Details
US2446601A Shoe fitting and footrest accessories for shoe stores Expired / Lapsed 1946-07-13 1948-08-10 0 Details
US2446964A Sewer mole Expired / Lapsed 1944-06-26 1948-08-10 0 Details
US2445484A Expansion joint and integral anchor Expired / Lapsed 1946-01-10 1948-07-20 0 Details
US2445343A Control system for airplanes Expired / Lapsed 1943-04-16 1948-07-20 0 Details
US2444421A Temperature measuring system with maximum or minimum select… Expired / Lapsed 1944-12-02 1948-07-06 0 Details
US2444528A Intravaginal pack and its manufacture Expired / Lapsed 1944-07-11 1948-07-06 0 Details
US2444028A Adjustable flexible strap Expired / Lapsed 1946-05-15 1948-06-29 0 Details
US2444410A Resistance thermometer Expired / Lapsed 1944-01-11 1948-06-29 0 Details
US2444145A Insert and use of same Expired / Lapsed 1943-05-24 1948-06-29 0 Details
US2443320A Circular display rack Expired / Lapsed 1944-08-31 1948-06-15 0 Details
US2443394A Coupling for hoses and pipes Expired / Lapsed 1944-05-13 1948-06-15 0 Details
US2441482A Shoulder pad construction Expired / Lapsed 1947-10-08 1948-05-11 0 Details
US2440943A Waterproof shield for toggle switches Expired / Lapsed 1944-09-19 1948-05-04 0 Details
US2440545A Preparation of yeast and of yeast and vitamin rich products Expired / Lapsed 1941-11-03 1948-04-27 0 Details
US2439071A Detachable handle for knives, hatchets, etc. Expired / Lapsed 1946-04-11 1948-04-06 0 Details
US2438274A Internal bore gauge Expired / Lapsed 1945-10-19 1948-03-23 0 Details
US2436790A Adding machine Expired / Lapsed 1940-06-26 1948-03-02 0 Details
US2435961A Regulator circuit Expired / Lapsed 1944-05-13 1948-02-17 0 Details
US2434030A Sutureless method of rectosigmoid anastomosis and apparatus… Expired / Lapsed 1945-11-13 1948-01-06 0 Details
US2433924A Antenna Expired / Lapsed 1945-08-01 1948-01-06 0 Details
US2433622A Perforated container for tamales Expired / Lapsed 1943-05-24 1947-12-30 0 Details
US2432739A Trailer attachment and hitch for tractors Expired / Lapsed 1945-06-11 1947-12-16 0 Details
US2432346A Synchronous timer Expired / Lapsed 1946-03-30 1947-12-09 0 Details
US2432179A Dental hand piece Expired / Lapsed 1945-09-14 1947-12-09 0 Details
US2432247A Pump Expired / Lapsed 1944-11-03 1947-12-09 0 Details
US2432250A Electrical insulating body Expired / Lapsed 1939-10-26 1947-12-09 0 Details
US2431616A Shoulder pad Expired / Lapsed 1945-03-02 1947-11-25 0 Details
US2428382A Liquid dispensing apparatus Expired / Lapsed 1943-10-11 1947-10-07 0 Details
US2427421A Apparatus and method for making and analyzing geophysical r… Expired / Lapsed 1940-06-22 1947-09-16 0 Details
US2426997A Projectile Expired / Lapsed 1941-03-10 1947-09-09 0 Details
US2426228A Speed indicator Expired / Lapsed 1942-10-31 1947-08-26 0 Details
US2425550A Process of making oriented regenerated protein products Expired / Lapsed 1943-04-17 1947-08-12 0 Details
US2424757A Self-locking bushing Expired / Lapsed 1945-06-06 1947-07-29 0 Details
US2424243A Remote control system Expired / Lapsed 1944-01-19 1947-07-22 0 Details
US2423668A Belt and buckle Expired / Lapsed 1946-05-16 1947-07-08 0 Details
US2423723A Pruning nippers of the pull operated type Expired / Lapsed 1945-01-31 1947-07-08 0 Details
US2421774A Apparatus for enumerating and indicating the number of avai… Expired / Lapsed 1943-08-14 1947-06-10 0 Details
US2421166A Means for giving warning of the formation of ice on aircraft Expired / Lapsed 1942-04-24 1947-05-27 0 Details
US2420772A Combination signal and radio aerial Expired / Lapsed 1943-05-20 1947-05-20 0 Details
US2420672A Geophysical prospecting Expired / Lapsed 1939-02-04 1947-05-20 0 Details
US2420303A Stable frequency conversion system Expired / Lapsed 1942-11-06 1947-05-13 0 Details
US2419848A Electrical heater and method of manufacturing it Expired / Lapsed 1945-04-28 1947-04-29 0 Details
US2416642A Means for the insertion of intravaginal packs Expired / Lapsed 1944-02-18 1947-02-25 0 Details
US2414125A Structural material for aircraft Expired / Lapsed 1943-06-25 1947-01-14 0 Details
US2413634A Caliper brace Expired / Lapsed 1944-05-18 1946-12-31 0 Details
US2413142A Suturing assembly and method Expired / Lapsed 1945-06-11 1946-12-24 0 Details
US2412397A Flexible tube pump Expired / Lapsed 1943-12-31 1946-12-10 0 Details
US2411944A Livestock marking tool Expired / Lapsed 1944-11-21 1946-12-03 0 Details
US2411118A Needle threading device Expired / Lapsed 1945-03-07 1946-11-12 0 Details
US2410546A Valve construction Expired / Lapsed 1944-08-24 1946-11-05 0 Details
US2408819A Radio remote control system Expired / Lapsed 1940-05-16 1946-10-08 0 Details
US2408398A Multiple extrusion Expired / Lapsed 1943-07-24 1946-10-01 0 Details
US2406600A Medical appliance Expired / Lapsed 1944-10-21 1946-08-27 0 Details
US2406185A Ignition controlling means Expired / Lapsed 1943-05-13 1946-08-20 0 Details
US2404445A Crystal Expired / Lapsed 1944-08-02 1946-07-23 0 Details
US2404020A Pressure-applying aviator's suit with helmet Expired / Lapsed 1943-03-10 1946-07-16 0 Details
US2400940A Gas detection apparatus Expired / Lapsed 1943-03-22 1946-05-28 0 Details
US2400722A Hypodermic needle case Expired / Lapsed 1944-07-10 1946-05-21 0 Details
US2400210A Shoulder perfectioner Expired / Lapsed 1944-08-05 1946-05-14 0 Details
US2399656A Float Expired / Lapsed 1944-12-07 1946-05-07 0 Details
US2400048A Differential pressure responsive device Expired / Lapsed 1943-06-11 1946-05-07 0 Details
US2399643A Resuscitator Expired / Lapsed 1943-04-10 1946-05-07 0 Details
US2399011A Bleeding instrument Expired / Lapsed 1945-05-08 1946-04-23 0 Details
US2398382A Method for coating optical elements Expired / Lapsed 1942-11-17 1946-04-16 0 Details
US2397088A Method of and apparatus for controlling directional changes… Expired / Lapsed 1942-02-04 1946-03-26 0 Details
US2396916A Weighing device Expired / Lapsed 1943-10-06 1946-03-19 0 Details
US2395592A Container and support Expired / Lapsed 1944-05-01 1946-02-26 0 Details
US2393191A Expander roll Expired / Lapsed 1945-02-21 1946-01-15 0 Details
US2393003A Kidney catheter Expired / Lapsed 1944-05-03 1946-01-15 0 Details
US2393224A Secret telecommunication Expired / Lapsed 1943-08-23 1946-01-15 0 Details
US2393068A Electrodeposition of insulating materials Expired / Lapsed 1943-03-23 1946-01-15 0 Details
US2389292A Preparation of protein compositions and masses having impro… Expired / Lapsed 1945-02-08 1945-11-20 0 Details
US2388323A Hypodermic syringe unit Expired / Lapsed 1943-01-08 1945-11-06 0 Details
US2387598A Oleopneumatic storage device Expired / Lapsed 1942-03-17 1945-10-23 0 Details
US2385897A Continuous filling and packaging machine Expired / Lapsed 1942-09-04 1945-10-02 0 Details
US2383082A Rivet squeezer and the like Expired / Lapsed 1942-06-30 1945-08-21 0 Details
US2383342A Hollow propeller Expired / Lapsed 1941-10-21 1945-08-21 0 Details
US2382427A Siphon breaker and valve Expired / Lapsed 1941-09-09 1945-08-14 0 Details
US2381218A Pile fabric Expired / Lapsed 1944-05-30 1945-08-07 0 Details
US2378395A Method and apparatus for telemetering flight test data Expired / Lapsed 1943-08-05 1945-06-19 0 Details
US2377894A Automatic control for locked oscillators Expired / Lapsed 1942-05-09 1945-06-12 0 Details
US2375588A Autointerpregraph signal recorder Expired / Lapsed 1943-11-23 1945-05-08 0 Details
US2375357A Method of making plastic springs Expired / Lapsed 1943-03-31 1945-05-08 0 Details
US2375575A Apparatus for treatment of nerves and muscles by means of e… Expired / Lapsed 1941-09-03 1945-05-08 0 Details
US2372227A Closure Expired / Lapsed 1940-12-24 1945-03-27 0 Details
US2371917A Revolving bin Expired / Lapsed 1942-10-13 1945-03-20 0 Details
US2371667A Method of covering containers Expired / Lapsed 1942-09-29 1945-03-20 0 Details
US2371868A Porous polyvinyl chloride compositions Expired / Lapsed 1942-02-05 1945-03-20 0 Details
US2371082A Surgical appliance Expired / Lapsed 1944-08-14 1945-03-06 0 Details
US2370959A Method of heat treatment for wire drawing Expired / Lapsed 1942-03-04 1945-03-06 0 Details
US2370000A Master compass and inertia means Expired / Lapsed 1941-11-27 1945-02-20 0 Details
US2369622A Orientation system Expired / Lapsed 1941-06-11 1945-02-13 0 Details
US2368035A Water-purifying and softening device Expired / Lapsed 1940-12-05 1945-01-23 0 Details
US2367211A Pressure gauge Expired / Lapsed 1943-03-31 1945-01-16 0 Details
US2367557A Process to clarify or chillproof whisky Expired / Lapsed 1940-12-05 1945-01-16 0 Details
US2366653A Bobbin clutch for spindle blades Expired / Lapsed 1944-03-20 1945-01-02 0 Details
US2366630A Bassinet organization Expired / Lapsed 1942-01-22 1945-01-02 0 Details
US2365556A Prophylactic package Expired / Lapsed 1941-03-12 1944-12-19 0 Details
US2363826A Method and machine for forming plastic spirals Expired / Lapsed 1942-03-19 1944-11-28 0 Details
US2363334A Surgical needle holder Expired / Lapsed 1943-03-02 1944-11-21 0 Details
US2362643A Breathing apparatus for use under water Expired / Lapsed 1942-01-21 1944-11-14 0 Details
US2362323A Combined weed guard and trolling plate for outboard motors Expired / Lapsed 1943-05-12 1944-11-07 0 Details
US2359574A Magazine type suturing clip applicator Expired / Lapsed 1941-11-22 1944-10-03 0 Details
US2358406A Electrical device Expired / Lapsed 1942-04-20 1944-09-19 0 Details
US2358228A Valve Expired / Lapsed 1942-11-20 1944-09-12 0 Details
US2355395A Electromagnetic alarm device Expired / Lapsed 1942-11-06 1944-08-08 0 Details
US2354870A High-speed bearing Expired / Lapsed 1941-11-01 1944-08-01 0 Details
US2353865A Gas burner Expired / Lapsed 1940-11-28 1944-07-18 0 Details
US2353250A Turnbuckle Expired / Lapsed 1944-01-06 1944-07-11 0 Details
US2352523A Apparatus and method for artificially inducing breathing Expired / Lapsed 1941-08-13 1944-06-27 0 Details
US2349942A Hollow space radiator Expired / Lapsed 1940-08-22 1944-05-30 0 Details
US2347988A Valve construction Expired / Lapsed 1943-10-20 1944-05-02 0 Details
US2345086A Apparatus for the manufacture of artificial sausage skins Expired / Lapsed 1938-05-09 1944-03-28 0 Details
US2344642A Temperature compensated strain gauge Expired / Lapsed 1942-08-05 1944-03-21 0 Details
US2344037A Stroboscopic timing and testing of diesel and similar engin… Expired / Lapsed 1940-11-08 1944-03-14 0 Details
US2343747A Machine for making tubular structures Expired / Lapsed 1941-05-27 1944-03-07 0 Details
US2342919A Torque testing device Expired / Lapsed 1943-04-03 1944-02-29 0 Details
US2342744A Electrically heated garment and portable battery therefor Expired / Lapsed 1942-10-10 1944-02-29 0 Details
US2342167A Multiple radio recorder Expired / Lapsed 1939-02-23 1944-02-22 0 Details
US2341530A Tacker and stabilizer therefor Expired / Lapsed 1940-02-17 1944-02-15 0 Details
US2341114A Disposable filter for blood and plasma transfusions Expired / Lapsed 1943-02-16 1944-02-08 0 Details
US2340142A Surgical dressing Expired / Lapsed 1942-05-11 1944-01-25 0 Details
US2338732A System for measuring force and acceleration Expired / Lapsed 1941-07-09 1944-01-11 0 Details
US2338473A Method of and apparatus for producing glass fibers Expired / Lapsed 1939-11-06 1944-01-04 0 Details
US2337567A Reading device Expired / Lapsed 1941-05-24 1943-12-28 0 Details
US2337483A Fastening device Expired / Lapsed 1942-07-10 1943-12-21 0 Details
US2336999A Formed metal door Expired / Lapsed 1942-02-13 1943-12-14 0 Details
US2335355A Producting equipment for wells Expired / Lapsed 1939-09-11 1943-11-30 0 Details
US2334843A Strain gauge with thermal current control Expired / Lapsed 1942-08-04 1943-11-23 0 Details
US2333120A Assembling tool Expired / Lapsed 1940-08-15 1943-11-02 0 Details
US2333218A Method of and apparatus for producing glass fibers Expired / Lapsed 1939-11-06 1943-11-02 0 Details
US2332529A Coaxial transmission line Expired / Lapsed 1940-10-01 1943-10-26 0 Details
US2332294A Distilling apparatus Expired / Lapsed 1942-02-16 1943-10-19 0 Details
US2331627A Time-break circuit Expired / Lapsed 1940-06-27 1943-10-12 0 Details
US2331337A Method of and machine for reproducing pattern contours Expired / Lapsed 1939-05-05 1943-10-12 0 Details
US2331271A Catamenial bandage Expired / Lapsed 1938-07-09 1943-10-05 0 Details
US2330202A Method of making electrodes Expired / Lapsed 1939-12-07 1943-09-28 0 Details
US2329253A Spectacle case Expired / Lapsed 1940-12-17 1943-09-14 0 Details
US2329632A Method of coating glass Expired / Lapsed 1938-12-19 1943-09-14 0 Details
US2328666A Electric heat-radiating means for walls, ceilings, or the l… Expired / Lapsed 1941-03-26 1943-09-07 0 Details
US2327714A Coupling Expired / Lapsed 1940-06-04 1943-08-24 0 Details
US2326962A Bit for lifting tongs Expired / Lapsed 1942-06-22 1943-08-17 0 Details
US2327054A Fluid actuated circuit closer Expired / Lapsed 1942-04-17 1943-08-17 0 Details
US2326737A Radio receiver Expired / Lapsed 1939-05-24 1943-08-17 0 Details
US2325884A Flowmeter Expired / Lapsed 1942-03-21 1943-08-03 0 Details
US2323629A Flexible collapsible fluid container and method of producin… Expired / Lapsed 1942-12-16 1943-07-06 0 Details
US2323301A Housing for use in testing detonators Expired / Lapsed 1942-07-20 1943-07-06 0 Details
US2323831A Process of adhesion Expired / Lapsed 1939-01-17 1943-07-06 0 Details
US2323063A Ship Expired / Lapsed 1941-08-01 1943-06-29 0 Details
US2322773A Electrical conductor Expired / Lapsed 1941-07-28 1943-06-29 0 Details
US2322936A Starting barrier Expired / Lapsed 1941-01-27 1943-06-29 0 Details
US2322319A Strain responsive apparatus Expired / Lapsed 1942-07-15 1943-06-22 0 Details
US2322602A Recording device Expired / Lapsed 1941-11-18 1943-06-22 0 Details
US2322312A Windshield wiper Expired / Lapsed 1941-10-17 1943-06-22 0 Details
US2322225A Aircraft automatic take-off, flight, and landing Expired / Lapsed 1939-07-29 1943-06-22 0 Details
US2322117A Artificial eye Expired / Lapsed 1942-04-18 1943-06-15 0 Details
US2321322A Rheostat Expired / Lapsed 1942-02-19 1943-06-08 0 Details
US2320303A Mechanic's tool Expired / Lapsed 1941-04-28 1943-05-25 0 Details
US2319024A Hose coupling Expired / Lapsed 1941-06-26 1943-05-11 0 Details
US2319129A Fastener for wallboard units Expired / Lapsed 1939-07-18 1943-05-11 0 Details
US2316915A Apparatus for amplifying and measuring small displacements Expired / Lapsed 1939-10-12 1943-04-20 0 Details
US2314920A Multiplex television and facsimile system Expired / Lapsed 1940-04-13 1943-03-30 0 Details
US2314573A Air cleaner Expired / Lapsed 1940-08-02 1943-03-23 0 Details
US2313263A Overshot fishing tool Expired / Lapsed 1941-05-24 1943-03-09 0 Details
US2312622A Steam boiler Expired / Lapsed 1940-01-22 1943-03-02 0 Details
US2312999A Filter for separating solids from liquids Expired / Lapsed 1939-12-19 1943-03-02 0 Details
US2310844A Electric knife with changeable points Expired / Lapsed 1941-04-09 1943-02-09 0 Details
US2309865A Method of molding articles Expired / Lapsed 1941-09-13 1943-02-02 0 Details
US2307212A Picture centering control apparatus Expired / Lapsed 1941-06-28 1943-01-05 0 Details
US2307592A Electrical locking connector Expired / Lapsed 1940-03-27 1943-01-05 0 Details
US2306726A Phonograph record Expired / Lapsed 1940-09-28 1942-12-29 0 Details
US2304604A Dynamoelectric device Expired / Lapsed 1940-11-25 1942-12-08 0 Details
US2301984A Implement for inserting firing pin springs Expired / Lapsed 1940-12-11 1942-11-17 0 Details
US2300066A Liquid dispensing apparatus Expired / Lapsed 1941-01-23 1942-10-27 0 Details
US2300325A Process of impermeabilizing, tightening, or consolidating g… Expired / Lapsed 1940-02-23 1942-10-27 0 Details
US2299330A Remote control system Expired / Lapsed 1941-11-07 1942-10-20 0 Details
US2299320A Concealed fixture support Expired / Lapsed 1940-08-24 1942-10-20 0 Details
US2297242A Sound recording and reproducing machine Expired / Lapsed 1937-12-24 1942-09-29 0 Details
US2297202A Transmission and/or the reception of electromagnetic waves Expired / Lapsed 1937-03-05 1942-09-29 0 Details
US2295982A Pump unit and stand Expired / Lapsed 1939-04-13 1942-09-15 0 Details
US2294966A Screen Expired / Lapsed 1940-02-03 1942-09-08 0 Details
US2294919A Insulated electric cable and the like Expired / Lapsed 1939-07-18 1942-09-08 0 Details
US2293883A Holding device for curtains Expired / Lapsed 1940-07-31 1942-08-25 0 Details
US2293126A Gear pump or motor Expired / Lapsed 1939-04-24 1942-08-18 0 Details
US2293127A Computing device Expired / Lapsed 1937-05-03 1942-08-18 0 Details
US2292272A Plant label Expired / Lapsed 1940-06-26 1942-08-04 0 Details
US2291912A Pumping apparatus Expired / Lapsed 1940-04-08 1942-08-04 0 Details
US2290890A Tube coupling Expired / Lapsed 1940-11-22 1942-07-28 0 Details
US2289382A Tube coupling Expired / Lapsed 1940-11-07 1942-07-14 0 Details
US2289308A Stapling machine Expired / Lapsed 1939-10-04 1942-07-07 0 Details
US2288628A Electrical phase shifting Expired / Lapsed 1939-02-25 1942-07-07 0 Details
US2287786A Automatic weather station Expired / Lapsed 1941-08-30 1942-06-30 0 Details
US2288445A Stock marker Expired / Lapsed 1940-11-07 1942-06-30 0 Details
US2286567A Seismic surveying Expired / Lapsed 1940-09-12 1942-06-16 0 Details
US2286462A Surgical suction drainage and irrigation tube Expired / Lapsed 1940-05-06 1942-06-16 0 Details
US2286571A Position-controlling apparatus Expired / Lapsed 1938-04-22 1942-06-16 0 Details
US2285522A Plant support Expired / Lapsed 1940-05-16 1942-06-09 0 Details
US2284728A Braid Expired / Lapsed 1941-01-09 1942-06-02 0 Details
US2285153A Adding, subtracting, and accounting machine Expired / Lapsed 1936-07-11 1942-06-02 0 Details
US2284266A System for signaling by electromagnetic waves Expired / Lapsed 1938-04-07 1942-05-26 0 Details
US2283543A Hair dresser's pin support Expired / Lapsed 1940-12-14 1942-05-19 0 Details
US2283383A Signaling system Expired / Lapsed 1940-11-06 1942-05-19 0 Details
US2283285A Massage Expired / Lapsed 1939-05-25 1942-05-19 0 Details
US2282648A Portable power-driven tool-operating machine Expired / Lapsed 1940-05-23 1942-05-12 0 Details
US2282344A Resistance device Expired / Lapsed 1939-12-15 1942-05-12 0 Details
US2282274A "vinyon" bandage and method of making and setting it Expired / Lapsed 1941-08-08 1942-05-05 0 Details
US2281226A Apparatus and system for measuring torque Expired / Lapsed 1939-09-11 1942-04-28 0 Details
US2280226A Flaw detecting device and measuring instrument Expired / Lapsed 1940-05-27 1942-04-21 0 Details
US2280005A Wrench Expired / Lapsed 1940-08-17 1942-04-14 0 Details
US2277786A Pressure hose Expired / Lapsed 1940-03-18 1942-03-31 0 Details
US2277692A Measuring cloud height and thickness Expired / Lapsed 1938-05-04 1942-03-31 0 Details
US2277216A Electrical outlet Expired / Lapsed 1939-12-06 1942-03-24 0 Details
US2276562A Sound recording stylus Expired / Lapsed 1940-07-09 1942-03-17 0 Details
US2276567A Decorative panel Expired / Lapsed 1940-05-31 1942-03-17 0 Details
US2277007A Storage projection tube Expired / Lapsed 1939-11-29 1942-03-17 0 Details
US2276582A Sanitary paper slipper Expired / Lapsed 1939-05-03 1942-03-17 0 Details
US2276623A Electrical apparatus for dental sterilization Expired / Lapsed 1938-04-26 1942-03-17 0 Details
US2275460A Electron beam control apparatus Expired / Lapsed 1939-11-01 1942-03-10 0 Details
US2275850A Drain cleaner Expired / Lapsed 1938-07-25 1942-03-10 0 Details
US2275017A Signaling system Expired / Lapsed 1940-06-18 1942-03-03 0 Details
US2270737A Siphon breaker and valve Expired / Lapsed 1940-07-26 1942-01-20 0 Details
US2269475A Projectile Expired / Lapsed 1939-05-29 1942-01-13 0 Details
US2270075A Method and apparatus for manufacturing pottery ware Expired / Lapsed 1938-11-12 1942-01-13 0 Details
US2269387A Furnace Expired / Lapsed 1940-03-25 1942-01-06 0 Details
US2268665A Method and arrangement for transferring telephone conversat… Expired / Lapsed 1939-03-25 1942-01-06 0 Details
US2266967A Protective shield Expired / Lapsed 1940-10-23 1941-12-23 0 Details
US2266820A Engine Expired / Lapsed 1938-07-13 1941-12-23 0 Details
US2266779A Code selective system Expired / Lapsed 1938-04-30 1941-12-23 0 Details
US2266052A Resonance control device Expired / Lapsed 1940-07-30 1941-12-16 0 Details
US2266226A Flexible hose and method of manufacturing Expired / Lapsed 1939-07-13 1941-12-16 0 Details
US2266270A Closure means Expired / Lapsed 1938-10-20 1941-12-16 0 Details
US2266536A Electric relay Expired / Lapsed 1938-09-01 1941-12-16 0 Details
US2264848A Air-conditioning apparatus for closed automobiles Expired / Lapsed 1939-09-05 1941-12-02 0 Details
US2263986A Facsimile recording system Expired / Lapsed 1940-05-11 1941-11-25 0 Details
US2264044A Motor vehicle speedometer Expired / Lapsed 1939-03-31 1941-11-25 0 Details
US2261991A Erasing device Expired / Lapsed 1940-08-01 1941-11-11 0 Details
US2262163A Propeller blade Expired / Lapsed 1939-05-25 1941-11-11 0 Details
US2261213A Syringe adapter Expired / Lapsed 1940-02-27 1941-11-04 0 Details
US2258859A Machine for analyzing curves or graphs Expired / Lapsed 1939-08-18 1941-10-14 0 Details
US2259299A Heating apparatus Expired / Lapsed 1938-04-18 1941-10-14 0 Details
US2258287A Adenotome Expired / Lapsed 1940-05-23 1941-10-07 0 Details
US2258527A Centrifugal pump Expired / Lapsed 1939-12-29 1941-10-07 0 Details
US2257222A Process for the manufacture of aritficial sausage skins Expired / Lapsed 1939-04-05 1941-09-30 0 Details
US2256659A Deep well pump motor Expired / Lapsed 1940-06-25 1941-09-23 0 Details
US2256552A Retrievable formation tester Expired / Lapsed 1940-03-19 1941-09-23 0 Details
US2256942A Surgical instrument Expired / Lapsed 1938-08-08 1941-09-23 0 Details
US2254854A Anesthetic administering device Expired / Lapsed 1941-05-16 1941-09-02 0 Details
US2253508A Navigation system for guiding aircraft Expired / Lapsed 1940-12-02 1941-08-26 0 Details
US2253292A Color televistion system Expired / Lapsed 1939-02-27 1941-08-19 0 Details
US2253000A Textile and method of making the same Expired / Lapsed 1937-08-02 1941-08-19 0 Details
US2252213A Dialyzing apparatus Expired / Lapsed 1939-08-30 1941-08-12 0 Details
US2252418A Release valve mechanism Expired / Lapsed 1939-05-02 1941-08-12 0 Details
US2251828A Scanning comparator Expired / Lapsed 1939-08-08 1941-08-05 0 Details
US2251717A Coupling for tubes Expired / Lapsed 1939-03-29 1941-08-05 0 Details
US2251672A Method of casting concrete pavements Expired / Lapsed 1936-06-04 1941-08-05 0 Details
US2250602A Honey uncapping knife Expired / Lapsed 1939-08-21 1941-07-29 0 Details
US2250333A Visibility meter Expired / Lapsed 1940-12-17 1941-07-22 0 Details
US2249906A Surgical device Expired / Lapsed 1938-09-03 1941-07-22 0 Details
US2249005A Receptacle for poker chips Expired / Lapsed 1939-10-03 1941-07-15 0 Details
US2249622A Refrigeration condenser control Expired / Lapsed 1939-04-22 1941-07-15 0 Details
US2249324A Multiple recorder Expired / Lapsed 1938-08-26 1941-07-15 0 Details
US2244952A Dispensing device Expired / Lapsed 1939-08-08 1941-06-10 0 Details
US2244902A Process for the automatic cultivation of yeast Expired / Lapsed 1938-12-23 1941-06-10 0 Details
US2244933A Vehicular traffic switch Expired / Lapsed 1938-04-11 1941-06-10 0 Details
US2244325A Colloidal solutions of inorganic oxides Expired / Lapsed 1940-04-15 1941-06-03 0 Details
US2243992A Flexible operating instrument Expired / Lapsed 1939-09-09 1941-06-03 0 Details
US2244523A Indicating mechanism for weighing scales Expired / Lapsed 1939-04-07 1941-06-03 0 Details
US2244507A Smoke indicator device Expired / Lapsed 1939-03-06 1941-06-03 0 Details
US2244475A Evaporator plate for refrigerated cabinets Expired / Lapsed 1938-03-29 1941-06-03 0 Details
US2243506A Unitary vulcanizing element Expired / Lapsed 1939-08-12 1941-05-27 0 Details
US2241451A Surgical measuring instrument Expired / Lapsed 1940-06-19 1941-05-13 0 Details
US2241125A Molding device with extensible core Expired / Lapsed 1937-09-28 1941-05-06 0 Details
US2239681A Power driven hack saw Expired / Lapsed 1939-10-25 1941-04-29 0 Details
US2238660A Surgical instrument Expired / Lapsed 1939-09-13 1941-04-15 0 Details
US2238588A Soap spray Expired / Lapsed 1937-11-05 1941-04-15 0 Details
US2238082A Cylinder treating machine Expired / Lapsed 1937-01-07 1941-04-15 0 Details
US2237213A Pipette Expired / Lapsed 1939-05-31 1941-04-01 0 Details
US2236794A Mechanism for division Expired / Lapsed 1937-07-28 1941-04-01 0 Details
US2236793A Conservator mechanism Expired / Lapsed 1937-07-15 1941-04-01 0 Details
US2236624A Temperature control apparatus Expired / Lapsed 1936-04-22 1941-04-01 0 Details
US2236063A Sampling device Expired / Lapsed 1940-06-19 1941-03-25 0 Details
US2235979A Surgical and diagnostic instrument Expired / Lapsed 1940-06-03 1941-03-25 0 Details
US2235894A Device for recording pulse waves, respiration, and blood pr… Expired / Lapsed 1938-01-18 1941-03-25 0 Details
US2235530A Securing means Expired / Lapsed 1939-03-11 1941-03-18 0 Details
US2235020A Electrical connector Expired / Lapsed 1938-08-13 1941-03-18 0 Details
US2233936A Dental appliance Expired / Lapsed 1940-03-28 1941-03-04 0 Details
US2232983A Fluid pump Expired / Lapsed 1938-06-08 1941-02-25 0 Details
US2232153A Diaphragm for dialysers Expired / Lapsed 1938-11-23 1941-02-18 0 Details
US2231251A Thermic ice and snow remover Expired / Lapsed 1939-03-20 1941-02-11 0 Details
US2231388A Fabric Expired / Lapsed 1938-07-29 1941-02-11 0 Details
US2230903A Odor absorbing composition Expired / Lapsed 1939-11-18 1941-02-04 0 Details
US2230486A Selector mechanism Expired / Lapsed 1939-06-15 1941-02-04 0 Details
US2229938A Label and the like Expired / Lapsed 1939-10-16 1941-01-28 0 Details
US2229669A Method of making nipples for pipe unions for coupling secti… Expired / Lapsed 1939-09-18 1941-01-28 0 Details
US2229868A Nail driver Expired / Lapsed 1938-08-29 1941-01-28 0 Details
US2228652A Highway guardrail Expired / Lapsed 1939-04-26 1941-01-14 0 Details
US2228778A Stapling machine Expired / Lapsed 1938-07-08 1941-01-14 0 Details
US2227551A Pipe coupling and pipe clamp Expired / Lapsed 1939-06-07 1941-01-07 0 Details
US2227727A Lithotrite Expired / Lapsed 1938-04-11 1941-01-07 0 Details
US2227270A Tonsillotome Expired / Lapsed 1939-01-23 1940-12-31 0 Details
US2226677A Automatic machine tool for machining profiled workpieces Expired / Lapsed 1936-12-28 1940-12-31 0 Details
US2226630A Cleaning device Expired / Lapsed 1936-12-19 1940-12-31 0 Details
US2227126A Brush and manufacture thereof Expired / Lapsed 1934-03-02 1940-12-31 0 Details
US2225472A Bushing Expired / Lapsed 1940-01-27 1940-12-17 0 Details
US2224450A Low velocity nozzle Expired / Lapsed 1938-10-31 1940-12-10 0 Details
US2224274A Fabric material Expired / Lapsed 1938-08-26 1940-12-10 0 Details
US2224646A Electric control system for tabulating cards, documents, an… Expired / Lapsed 1937-04-22 1940-12-10 0 Details
US2222869A Pump Expired / Lapsed 1937-05-27 1940-11-26 0 Details
US2222843A Circuit breaker Expired / Lapsed 1936-11-20 1940-11-26 0 Details
US2222588A Extensible antenna Expired / Lapsed 1940-06-07 1940-11-19 0 Details
US2221776A Electron photography Expired / Lapsed 1938-09-08 1940-11-19 0 Details
US2221124A Clip Expired / Lapsed 1939-10-06 1940-11-12 0 Details
US2221157A Rivet remover Expired / Lapsed 1938-11-22 1940-11-12 0 Details
US2221138A Filiform guide Expired / Lapsed 1938-06-15 1940-11-12 0 Details
US2220722A Slipper Expired / Lapsed 1939-01-13 1940-11-05 0 Details
US2220706A Multiple unit filter Expired / Lapsed 1939-01-10 1940-11-05 0 Details
US2219605A Device for performing a biopsy Expired / Lapsed 1938-06-06 1940-10-29 0 Details
US2218823A Assembly bolt nut cage Expired / Lapsed 1938-05-04 1940-10-22 0 Details
US2217776A Parking control means Expired / Lapsed 1938-06-01 1940-10-15 0 Details
US2217729A Hair treating apparatus Expired / Lapsed 1934-10-13 1940-10-15 0 Details
US2217005A Manufacture of sheets containing mineral wool fiber Expired / Lapsed 1938-01-19 1940-10-08 0 Details
US2217538A Method of making rock wool articles and apparatus therefor Expired / Lapsed 1937-10-23 1940-10-08 0 Details
US2216219A Clip Expired / Lapsed 1939-06-05 1940-10-01 0 Details
US2216699A Automatic regulator Expired / Lapsed 1937-12-03 1940-10-01 0 Details
US2214992A Receiver and transmitter for telephone desk sets Expired / Lapsed 1936-05-27 1940-09-17 0 Details
US2214226A Method and apparatus useful in drilling and producing wells Expired / Lapsed 1939-03-29 1940-09-10 0 Details
US2213955A Pressure reducing device Expired / Lapsed 1939-03-15 1940-09-10 0 Details
US2213246A Magnetic sound recording and monitor system Expired / Lapsed 1937-10-25 1940-09-03 0 Details
US2212799A Harmonic analyzer Expired / Lapsed 1938-10-24 1940-08-27 0 Details
US2212050A Ventilating system Expired / Lapsed 1936-12-01 1940-08-20 0 Details
US2211154A Pressure generator for motor vehicles Expired / Lapsed 1935-07-03 1940-08-13 0 Details
US2210458A Method of and apparatus for air conditioning Expired / Lapsed 1936-11-16 1940-08-06 0 Details
US2210277A Method of making pressure tanks Expired / Lapsed 1936-04-20 1940-08-06 0 Details
US2210424A Artificial tooth and method of installation of the same Expired / Lapsed 1935-11-25 1940-08-06 0 Details
US2210555A Boiler relief device Expired / Lapsed 1934-12-12 1940-08-06 0 Details
US2209700A Liquid metering and cost computing apparatus Expired / Lapsed 1938-03-08 1940-07-30 0 Details
US2208023A Electrode Expired / Lapsed 1937-08-21 1940-07-16 0 Details
US2205270A Colostomy cup Expired / Lapsed 1939-03-20 1940-06-18 0 Details
US2204290A Automatic steering device Expired / Lapsed 1938-08-08 1940-06-11 0 Details
US2203140A Method for seismic prospecting Expired / Lapsed 1937-02-27 1940-06-04 0 Details
US2203572A Striping or banding machine Expired / Lapsed 1936-08-25 1940-06-04 0 Details
US2201791A Bottle closure Expired / Lapsed 1939-01-05 1940-05-21 0 Details
US2201225A Die for making a t-shaped part Expired / Lapsed 1937-12-02 1940-05-21 0 Details
US2200702A Detachable fastener Expired / Lapsed 1938-12-15 1940-05-14 0 Details
US2200440A Hinge Expired / Lapsed 1938-02-17 1940-05-14 0 Details
US2199394A Light control system Expired / Lapsed 1938-07-22 1940-05-07 0 Details
US2200120A Fracture nail guide Expired / Lapsed 1938-04-30 1940-05-07 0 Details
US2199198A Seal for overlapping metal bands Expired / Lapsed 1938-02-09 1940-04-30 0 Details
US2199010A Batching apparatus recording mechanism Expired / Lapsed 1936-01-03 1940-04-30 0 Details
US2198319A Biopsy needle Expired / Lapsed 1938-10-29 1940-04-23 0 Details
US2194141A Sighting device Expired / Lapsed 1934-12-24 1940-03-19 0 Details
US2192555A Electrical control system Expired / Lapsed 1938-12-13 1940-03-05 0 Details
US2191045A Speed indicator Expired / Lapsed 1938-07-11 1940-02-20 0 Details
US2188923A Tampon Expired / Lapsed 1937-10-20 1940-02-06 0 Details
US2185692A Heating pad Expired / Lapsed 1939-06-19 1940-01-02 0 Details
US2184642A Rectal electrode Expired / Lapsed 1937-11-01 1939-12-26 0 Details
US2182214A Hydraulic artificial hand Expired / Lapsed 1937-04-10 1939-12-05 0 Details
US2182223A Electrophysiotherapeutical apparatus Expired / Lapsed 1936-09-05 1939-12-05 0 Details
US2181512A Sample taking device Expired / Lapsed 1937-01-18 1939-11-28 0 Details
US2180271A Hose clamp Expired / Lapsed 1939-03-09 1939-11-14 0 Details
US2179872A Apparatus for and method of reducing distortion in the rece… Expired / Lapsed 1937-09-10 1939-11-14 0 Details
US2180211A Suspension means for picture frames Expired / Lapsed 1937-06-05 1939-11-14 0 Details
US2178778A Container and seam closure therefor Expired / Lapsed 1938-05-03 1939-11-07 0 Details
US2178701A Method for applying fluids to and cleaning articles Expired / Lapsed 1936-05-28 1939-11-07 0 Details
US2178704A Tampon Expired / Lapsed 1936-03-12 1939-11-07 0 Details
US2176308A Sanitary tooth cleaning pad Expired / Lapsed 1937-10-08 1939-10-17 0 Details
US2176565A Valve for inflatable articles Expired / Lapsed 1937-03-10 1939-10-17 0 Details
US2176620A Dental illumination unit Expired / Lapsed 1937-02-25 1939-10-17 0 Details
US2175099A Method and apparatus for producing coated rubber-insulated … Expired / Lapsed 1939-04-22 1939-10-03 0 Details
US2172125A Wall plug for insertion in walls, floors, ceilings, and oth… Expired / Lapsed 1937-01-25 1939-09-05 0 Details
US2171460A Deep well motor pump Expired / Lapsed 1938-06-18 1939-08-29 0 Details
US2171152A Electrical signaling system and device therefor Expired / Lapsed 1936-04-27 1939-08-29 0 Details
US2170087A Airplane indicator Expired / Lapsed 1936-07-31 1939-08-22 0 Details
US2169212A Radio transmitting system Expired / Lapsed 1937-01-16 1939-08-15 0 Details
US2167576A Solar heater Expired / Lapsed 1937-08-25 1939-07-25 0 Details
US2167080A Needle threader Expired / Lapsed 1936-05-26 1939-07-25 0 Details
US2165412A Fastener Expired / Lapsed 1936-03-21 1939-07-11 0 Details
US2163297A Thermostat remote control Expired / Lapsed 1937-08-10 1939-06-20 0 Details
US2163455A Resilient securing device Expired / Lapsed 1934-12-05 1939-06-20 0 Details
US2162222A Spectacle case Expired / Lapsed 1938-07-20 1939-06-13 0 Details
US2162681A Bronchoscope Expired / Lapsed 1938-06-13 1939-06-13 0 Details
US2159720A Pump Expired / Lapsed 1936-02-27 1939-05-23 0 Details
US2157400A Display apparatus Expired / Lapsed 1937-05-01 1939-05-09 0 Details
US2157112A Machine for cleansing and treating Expired / Lapsed 1931-09-16 1939-05-09 0 Details
US2156895A Weight control system Expired / Lapsed 1938-02-12 1939-05-02 0 Details
US2156522A Booster embalming tube Expired / Lapsed 1937-06-11 1939-05-02 0 Details
US2155008A Flexible adapter coupling Expired / Lapsed 1938-07-05 1939-04-18 0 Details
US2153801A Acid-amine condensation product Expired / Lapsed 1937-06-10 1939-04-11 0 Details
US2152922A Zonal hemorrhage-checking compression plate Expired / Lapsed 1937-06-30 1939-04-04 0 Details
US2152535A Alarm system Expired / Lapsed 1935-07-15 1939-03-28 0 Details
US2150252A Air conditioning system Expired / Lapsed 1935-10-12 1939-03-14 0 Details
US2147777A Motor vehicle power transmitting unit Expired / Lapsed 1935-04-26 1939-02-21 0 Details
US2147355A Permanent hose coupling Expired / Lapsed 1938-06-29 1939-02-14 0 Details
US2142117A Antenna system Expired / Lapsed 1937-03-18 1939-01-03 0 Details
US2139653A Syringe Expired / Lapsed 1936-05-11 1938-12-13 0 Details
US2137132A Duplex needle Expired / Lapsed 1937-09-17 1938-11-15 0 Details
US2137169A Medicinal dressing material Expired / Lapsed 1936-06-10 1938-11-15 0 Details
US2135503A Container Expired / Lapsed 1937-04-20 1938-11-08 0 Details
US2135223A Coupling Expired / Lapsed 1937-03-22 1938-11-01 0 Details
US2135221A Coupling Expired / Lapsed 1936-01-06 1938-11-01 0 Details
US2133130A Supra-pubic drain appliance Expired / Lapsed 1936-12-11 1938-10-11 0 Details
US2131321A Ligator Expired / Lapsed 1937-10-11 1938-09-27 0 Details
US2131329A Liquid feed control device Expired / Lapsed 1936-05-26 1938-09-27 0 Details
US2130165A Removable tube burner Expired / Lapsed 1937-01-19 1938-09-13 0 Details
US2129920A Electric control system Expired / Lapsed 1936-05-15 1938-09-13 0 Details
US2129054A Colostomy appliance Expired / Lapsed 1937-02-17 1938-09-06 0 Details
US2127611A Coupling Expired / Lapsed 1936-08-22 1938-08-23 0 Details
US2126070A Electrotherapy Expired / Lapsed 1932-04-29 1938-08-09 0 Details
US2126144A Traffic control system Expired / Lapsed 1930-05-10 1938-08-09 0 Details
US2125555A Electrical connecter Expired / Lapsed 1928-07-09 1938-08-02 0 Details
US2125025A Process of producing artificial sausage skins Expired / Lapsed 1937-11-03 1938-07-26 0 Details
US2125224A Shotgun cartridge Expired / Lapsed 1937-02-13 1938-07-26 0 Details
US2123815A Fuel injection pump Expired / Lapsed 1935-12-20 1938-07-12 0 Details
US2122925A Coupling for canvas tubing Expired / Lapsed 1937-09-29 1938-07-05 0 Details
US2122442A Fastening device Expired / Lapsed 1937-09-25 1938-07-05 0 Details
US2122121A Surgical aspirated drainage cup Expired / Lapsed 1937-02-02 1938-06-28 0 Details
US2120598A Electrical cutting instrument Expired / Lapsed 1937-03-06 1938-06-14 0 Details
US2120301A Flexible tube warmer Expired / Lapsed 1936-04-15 1938-06-14 0 Details
US2119499A Form for making latex articles Expired / Lapsed 1937-10-12 1938-05-31 0 Details
US2118892A Skating footwear Expired / Lapsed 1936-11-11 1938-05-31 0 Details
US2118292A Differential pressure control Expired / Lapsed 1931-12-23 1938-05-24 0 Details
US2116119A System for electrically measuring the thickness of metallic… Expired / Lapsed 1935-10-04 1938-05-03 0 Details
US2116296A Apparatus for measuring or delivering liquids or gases Expired / Lapsed 1934-09-17 1938-05-03 0 Details
US2115298A Suction tonsillectome Expired / Lapsed 1937-04-16 1938-04-26 0 Details
US2115027A Warning signal for hydrotherapeutic systems Expired / Lapsed 1932-07-30 1938-04-26 0 Details
US2114472A Comparator Expired / Lapsed 1937-10-30 1938-04-19 0 Details
US2113923A Filter Expired / Lapsed 1936-12-07 1938-04-12 0 Details
US2113376A High speed engine indicator Expired / Lapsed 1936-08-29 1938-04-05 0 Details
US2113439A Dental device Expired / Lapsed 1936-08-04 1938-04-05 0 Details
US2112914A Shock absorber bracket Expired / Lapsed 1936-07-06 1938-04-05 0 Details
US2112666A Post-surgical gas vent Expired / Lapsed 1936-12-22 1938-03-29 0 Details
US2112146A Coupling for hydraulic brakes Expired / Lapsed 1937-02-08 1938-03-22 0 Details
US2112068A Soldering iron Expired / Lapsed 1936-03-28 1938-03-22 0 Details
US2112010A Apparatus for producing printing plates Expired / Lapsed 1929-10-28 1938-03-22 0 Details
US2111113A Sponged sheet material Expired / Lapsed 1931-01-20 1938-03-15 0 Details
US2110662A Dual oiling system for internal combustion engines Expired / Lapsed 1937-05-29 1938-03-08 0 Details
US2108607A Radio tuning device Expired / Lapsed 1931-02-27 1938-02-15 0 Details
US2107525A Fire detecting and alarm mechanism Expired / Lapsed 1935-01-08 1938-02-08 0 Details
US2107095A Leg brace Expired / Lapsed 1936-07-14 1938-02-01 0 Details
US2107200A Valve Expired / Lapsed 1936-05-21 1938-02-01 0 Details
US2105798A Vessel or box for canning Expired / Lapsed 1936-05-29 1938-01-18 0 Details
US2105071A Filter glass holder Expired / Lapsed 1937-10-01 1938-01-11 0 Details
US2105019A Reciprocating engine, pump, or compressor of the swash or w… Expired / Lapsed 1936-06-01 1938-01-11 0 Details
US2105200A Surgical pump Expired / Lapsed 1934-04-25 1938-01-11 0 Details
US2104217A Handle assembly escutcheon Expired / Lapsed 1935-07-01 1938-01-04 0 Details
US2103942A Detachable plaster cast Expired / Lapsed 1936-01-30 1937-12-28 0 Details
US2103570A Automatic liquid regulating system Expired / Lapsed 1935-12-20 1937-12-28 0 Details
US2102270A Electrosurgical device Expired / Lapsed 1935-11-29 1937-12-14 0 Details
US2101811A Filter pad Expired / Lapsed 1935-12-28 1937-12-07 0 Details
US2098331A Automatic station selector for radio receivers Expired / Lapsed 1934-04-21 1937-11-09 0 Details
US2097226A Electric meter Expired / Lapsed 1934-10-30 1937-10-26 0 Details
US2096229A Caster brake Expired / Lapsed 1936-08-03 1937-10-19 0 Details
US2096296A Process for the production of slippery rubber goods Expired / Lapsed 1936-04-01 1937-10-19 0 Details
US2095059A Apparatus for measuring and enlarging sculpture Expired / Lapsed 1934-06-04 1937-10-05 0 Details
US2094200A Animal identification tag Expired / Lapsed 1937-05-05 1937-09-28 0 Details
US2093454A Method of producing aerogels Expired / Lapsed 1934-10-01 1937-09-21 0 Details
US2092929A Penetrative implement Expired / Lapsed 1934-05-29 1937-09-14 0 Details
US2091603A Container Expired / Lapsed 1936-12-07 1937-08-31 0 Details
US2090994A Gas purifying apparatus Expired / Lapsed 1936-10-02 1937-08-24 0 Details
US2089632A Means for reproducing inscriptions and the like Expired / Lapsed 1936-08-28 1937-08-10 0 Details
US2088928A Electrolytic condenser Expired / Lapsed 1935-11-04 1937-08-03 0 Details
US2088924A Electric signaling or indicating means Expired / Lapsed 1935-01-12 1937-08-03 0 Details
US2088422A Method of forming carbon electrodes Expired / Lapsed 1934-12-18 1937-07-27 0 Details
US2082782A Vacuum tenaculum Expired / Lapsed 1935-10-03 1937-06-08 0 Details
US2080100A Method and means for storing and selecting records Expired / Lapsed 1933-03-10 1937-05-11 0 Details
US2078064A Nail and tack driving device Expired / Lapsed 1932-04-07 1937-04-20 0 Details
US2077024A Suction device Expired / Lapsed 1935-09-11 1937-04-13 0 Details
US2077102A Recording device for sound on films Expired / Lapsed 1934-11-23 1937-04-13 0 Details
US2073637A Motion picture system utilizing continuously moving film Expired / Lapsed 1934-12-07 1937-03-16 0 Details
US2070839A Running board assembly Expired / Lapsed 1934-07-13 1937-02-16 0 Details
US2070714A Insulated material and method of making the same Expired / Lapsed 1930-10-25 1937-02-16 0 Details
US2070067A Steam scrubber Expired / Lapsed 1936-01-29 1937-02-09 0 Details
US2069903A Insulating material having a high dielectric constant and a… Expired / Lapsed 1935-12-27 1937-02-09 0 Details
US2069292A Method of forcing plant growth Expired / Lapsed 1936-03-17 1937-02-02 0 Details
US2066426A Composite fence structure Expired / Lapsed 1935-12-30 1937-01-05 0 Details
US2066886A Implement attachment Expired / Lapsed 1935-12-04 1937-01-05 0 Details
US2062589A Container for carbon dioxide blocks Expired / Lapsed 1935-09-16 1936-12-01 0 Details
US2062834A Filtering device or separator for filter type respirators o… Expired / Lapsed 1935-07-06 1936-12-01 0 Details
US2061392A Packing gasket Expired / Lapsed 1933-05-29 1936-11-17 0 Details
US2057611A Attachment for automobiles Expired / Lapsed 1935-07-02 1936-10-13 0 Details
US2052581A Train traffic control Expired / Lapsed 1932-05-07 1936-09-01 0 Details
US2051153A Method and apparatus for recording elastic waves Expired / Lapsed 1934-12-22 1936-08-18 0 Details
US2050314A Weighing feeder Expired / Lapsed 1934-05-09 1936-08-11 0 Details
US2048393A Triple service water heater and boiler Expired / Lapsed 1936-03-16 1936-07-21 0 Details
US2042490A Altimeter for aircraft Expired / Lapsed 1933-08-28 1936-06-02 0 Details
US2042403A Needle threader Expired / Lapsed 1935-02-27 1936-05-26 0 Details
US2034785A Endoscopic forceps Expired / Lapsed 1935-07-12 1936-03-24 0 Details
US2031146A Automatic watering device Expired / Lapsed 1935-08-16 1936-02-18 0 Details
US2031020A Surgical endoscopic instrument Expired / Lapsed 1931-12-18 1936-02-18 0 Details
US2030277A Torque motor Expired / Lapsed 1935-04-08 1936-02-11 0 Details
US2030476A Method of producing mirrors Expired / Lapsed 1931-01-21 1936-02-11 0 Details
US2027290A Water bottle Expired / Lapsed 1935-07-02 1936-01-07 0 Details
US2026929A Heater and ventilator for motor vehicles Expired / Lapsed 1935-01-19 1936-01-07 0 Details
US2025950A Foot warming device Expired / Lapsed 1934-07-05 1935-12-31 0 Details
US2024929A Carburetor for internal combustion engines Expired / Lapsed 1934-05-08 1935-12-17 0 Details
US2024138A Radio signaling system Expired / Lapsed 1930-10-21 1935-12-17 0 Details
US2024492A Fluid register Expired / Lapsed 1930-04-21 1935-12-17 0 Details
US2022065A Therapeutic applicator device Expired / Lapsed 1932-07-07 1935-11-26 0 Details
US2021241A Quick detachable coupling Expired / Lapsed 1934-12-24 1935-11-19 0 Details
US2021041A Push button switch Expired / Lapsed 1933-12-11 1935-11-12 0 Details
US2021099A Electric control system Expired / Lapsed 1933-07-27 1935-11-12 0 Details
US2020164A Headlight for motor cars Expired / Lapsed 1932-03-21 1935-11-05 0 Details
US2018080A Method of and device for differentiating between geologic s… Expired / Lapsed 1935-05-31 1935-10-22 0 Details
US2018335A Endoscopic instrument Expired / Lapsed 1933-08-16 1935-10-22 0 Details
US2016660A Apparatus for measuring rate of cooling Expired / Lapsed 1931-12-28 1935-10-08 0 Details
US2016375A Method for uniting conduits Expired / Lapsed 1931-06-15 1935-10-08 0 Details
US2015574A Transfusion device Expired / Lapsed 1935-04-30 1935-09-24 0 Details
US2015632A Method of making dipped rubber articles Expired / Lapsed 1933-10-31 1935-09-24 0 Details
US2014411A Apparatus for electromagnetostrictive transmission and rece… Expired / Lapsed 1933-08-02 1935-09-17 0 Details
US2014313A Pipe coupling Expired / Lapsed 1933-03-02 1935-09-10 0 Details
US2012027A Stapling apparatus Expired / Lapsed 1933-09-15 1935-08-20 0 Details
US2010322A Combined lighting and ventilating fixture Expired / Lapsed 1931-04-08 1935-08-06 0 Details
US2009929A Portable internal-combustion actuated tamping machine or ra… Expired / Lapsed 1933-10-21 1935-07-30 0 Details
US2009021A Record controlled printing machine Expired / Lapsed 1931-03-24 1935-07-23 0 Details
US2008380A Gynecological instrument Expired / Lapsed 1934-12-20 1935-07-16 0 Details
US2008525A Endoscopic instrument Expired / Lapsed 1931-11-06 1935-07-16 0 Details
US2005741A Magneto-strictive sound generator Expired / Lapsed 1932-12-15 1935-06-25 0 Details
US2005425A Regenerative sound recording device Expired / Lapsed 1931-02-03 1935-06-18 0 Details
US2004041A Utilization of cellulosic films, sheets, and the like Expired / Lapsed 1933-03-22 1935-06-04 0 Details
US2002777A Service station Expired / Lapsed 1934-05-28 1935-05-28 0 Details
US2002595A Telescopic instrument Expired / Lapsed 1933-12-06 1935-05-28 0 Details
US2002515A Producing color in television Expired / Lapsed 1932-08-09 1935-05-28 0 Details
US2002254A Steam generator Expired / Lapsed 1934-03-13 1935-05-21 0 Details
US2000026A Vibrator Expired / Lapsed 1934-06-14 1935-05-07 0 Details
US1998188A Knife handle Expired / Lapsed 1933-11-24 1935-04-16 0 Details
US1997899A Electrically heated pad Expired / Lapsed 1931-08-22 1935-04-16 0 Details
US1996261A Adenotome Expired / Lapsed 1933-06-17 1935-04-02 0 Details
US1993267A Pumping apparatus Expired / Lapsed 1928-07-14 1935-03-05 0 Details
US1992441A Single side band transmission and reception Expired / Lapsed 1930-09-06 1935-02-26 0 Details
US1992101A Filter Expired / Lapsed 1932-02-17 1935-02-19 0 Details
US1991529A Centrifugal pump Expired / Lapsed 1930-05-17 1935-02-19 0 Details
US1990085A Method and apparatus for testing materials Expired / Lapsed 1928-03-26 1935-02-05 0 Details
US1988087A Broiler Expired / Lapsed 1932-02-06 1935-01-15 0 Details
US1987499A Union for flexible pipes Expired / Lapsed 1933-10-25 1935-01-08 0 Details
US1985108A Surgical instrument Expired / Lapsed 1933-12-18 1934-12-18 0 Details
US1983601A Mucus surface scraper and medicinal distributor Expired / Lapsed 1931-11-24 1934-12-11 0 Details
US1983554A Process and apparatus for finishing pressed fibrous articles Expired / Lapsed 1928-11-22 1934-12-11 0 Details
US1982207A Clamping instrument and process of using the same Expired / Lapsed 1933-12-29 1934-11-27 0 Details
US1981619A Pump Expired / Lapsed 1932-07-29 1934-11-20 0 Details
US1979471A Electric heater Expired / Lapsed 1930-05-26 1934-11-06 0 Details
US1978591A Electric cable Expired / Lapsed 1933-03-18 1934-10-30 0 Details
US1977987A Process of making and testing tube joints Expired / Lapsed 1929-12-02 1934-10-23 0 Details
US1975812A Protective circuit for high frequency oscillator tubes Expired / Lapsed 1931-03-13 1934-10-09 0 Details
US1974499A Key ring Expired / Lapsed 1934-05-24 1934-09-25 0 Details
US1974513A Automatic feed welding and fusion cutting machine Expired / Lapsed 1933-03-11 1934-09-25 0 Details
US1973911A Electrode for therapeutic devices Expired / Lapsed 1933-10-28 1934-09-18 0 Details
US1972578A Measuring instrument Expired / Lapsed 1932-06-28 1934-09-04 0 Details
US1971450A Fire extinguisher and other pumplike device Expired / Lapsed 1932-10-21 1934-08-28 0 Details
US1969100A Filing cutting, scraping and manicuring implement Expired / Lapsed 1932-04-22 1934-08-07 0 Details
US1965669A Portable electric tool Expired / Lapsed 1932-08-12 1934-07-10 0 Details
US1966170A Automatic steering device Expired / Lapsed 1929-11-15 1934-07-10 0 Details
US1964911A Catamenial device Expired / Lapsed 1933-05-22 1934-07-03 0 Details
US1961723A Hot water heater Expired / Lapsed 1933-02-25 1934-06-05 0 Details
US1962035A Fastener post Expired / Lapsed 1933-02-06 1934-06-05 0 Details
US1961866A Method of treating tobacco Expired / Lapsed 1931-06-26 1934-06-05 0 Details
US1961933A Gas combustion system and control Expired / Lapsed 1931-05-20 1934-06-05 0 Details
US1961763A Tool joint Expired / Lapsed 1930-06-12 1934-06-05 0 Details
US1961990A Malting apparatus Expired / Lapsed 1929-11-19 1934-06-05 0 Details
US1958678A Attaching fasteners to panels and the like Expired / Lapsed 1931-04-03 1934-05-15 0 Details
US1955512A Gas burner Expired / Lapsed 1933-06-02 1934-04-17 0 Details
US1951565A Valve Expired / Lapsed 1932-06-20 1934-03-20 0 Details
US1947249A Telephonic telegraphy Expired / Lapsed 1930-01-10 1934-02-13 0 Details
US1945928A Machine for producing or reproducing designs and other forms Expired / Lapsed 1929-03-12 1934-02-06 0 Details
US1944804A Method and device for purifying aqueous liquids by treatmen… Expired / Lapsed 1933-01-13 1934-01-23 0 Details
US1942745A Universal driving connection Expired / Lapsed 1932-07-11 1934-01-09 0 Details
US1940855A Knife Expired / Lapsed 1931-06-25 1933-12-26 0 Details
US1939949A Smoke treating device Expired / Lapsed 1931-09-29 1933-12-19 0 Details
US1939136A Artificial fur Expired / Lapsed 1929-04-19 1933-12-12 0 Details
US1937966A Propeller for aircraft Expired / Lapsed 1931-12-15 1933-12-05 0 Details
US1937367A Balanced gear pump or motor Expired / Lapsed 1931-08-18 1933-11-28 0 Details
US1936963A System of distributing and testing terminals arranged in ro… Expired / Lapsed 1929-12-21 1933-11-28 0 Details
US1936391A Thawing appliance Expired / Lapsed 1931-02-19 1933-11-21 0 Details
US1933219A System for deflecting electron passages in cathode ray tubes Expired / Lapsed 1931-11-10 1933-10-31 0 Details
US1931720A Instrument for treating infection of the pharynx and eustac… Expired / Lapsed 1931-06-17 1933-10-24 0 Details
US1930107A Safety valve for acetylene torches Expired / Lapsed 1932-03-17 1933-10-10 0 Details
US1928992A Flexible tubing Expired / Lapsed 1931-02-20 1933-10-03 0 Details
US1923199A Battery cable terminal tongs Expired / Lapsed 1932-05-04 1933-08-22 0 Details
US1923972A Dental appliance Expired / Lapsed 1932-01-05 1933-08-22 0 Details
US1923208A Pantographic scanning Expired / Lapsed 1930-05-07 1933-08-22 0 Details
US1922155A Radio receiving apparatus Expired / Lapsed 1928-07-19 1933-08-15 0 Details
US1921900A One-unit ventilating system Expired / Lapsed 1931-04-21 1933-08-08 0 Details
US1920821A Distraction bone forceps Expired / Lapsed 1931-12-31 1933-08-01 0 Details
US1919541A Dishwasher Expired / Lapsed 1931-08-03 1933-07-25 0 Details
US1919858A Method of determining and recording oxygen content of liqui… Expired / Lapsed 1931-07-21 1933-07-25 0 Details
US1918890A Surgical device Expired / Lapsed 1932-08-08 1933-07-18 0 Details
US1918889A Artery forceps Expired / Lapsed 1932-05-18 1933-07-18 0 Details
US1917909A Electrical plug Expired / Lapsed 1932-10-13 1933-07-11 0 Details
US1913595A Artificial pace maker for the heart Expired / Lapsed 1930-03-12 1933-06-13 0 Details
US1913293A Electrical process for the geological investigation of the … Expired / Lapsed 1932-01-23 1933-06-06 0 Details
US1913030A Packer attaching means Expired / Lapsed 1931-06-17 1933-06-06 0 Details
US1912889A Method of producing metallic dies Expired / Lapsed 1931-03-17 1933-06-06 0 Details
US1913131A Temperature-responsive control Expired / Lapsed 1928-05-19 1933-06-06 0 Details
US1911094A Mucilage container and spreader Expired / Lapsed 1930-12-15 1933-05-23 0 Details
US1908181A Dust collector and separator system Expired / Lapsed 1928-06-08 1933-05-09 0 Details
US1904061A Hose coupling Expired / Lapsed 1930-12-03 1933-04-18 0 Details
US1903575A Radial cord pneumatic tire Expired / Lapsed 1932-02-24 1933-04-11 0 Details
US1903459A Controlling apparatus Expired / Lapsed 1931-05-28 1933-04-11 0 Details
US1903348A Aerial bomb Expired / Lapsed 1932-06-18 1933-04-04 0 Details
US1900193A Promoting plant growth Expired / Lapsed 1931-10-08 1933-03-07 0 Details
US1900018A Device for controlling electric current Expired / Lapsed 1928-03-28 1933-03-07 0 Details
US1899781A Stomach tube or the like Expired / Lapsed 1932-04-27 1933-02-28 0 Details
US1899883A Adjustable and interchangeable mounting for motor driven to… Expired / Lapsed 1930-06-25 1933-02-28 0 Details
US1897197A Heating plate Expired / Lapsed 1930-03-15 1933-02-14 0 Details
US1895186A Fence post Expired / Lapsed 1929-03-06 1933-01-24 0 Details
US1894328A Electrical device for the determination of specific resisti… Expired / Lapsed 1932-07-02 1933-01-17 0 Details
US1894697A Indicator Expired / Lapsed 1929-06-12 1933-01-17 0 Details
US1892125A Seadrome Expired / Lapsed 1930-06-18 1932-12-27 0 Details
US1890286A De-icer for aeroplanes and the like Expired / Lapsed 1932-05-12 1932-12-06 0 Details
US1888613A Apparatus for impregnating and molding a porous structure Expired / Lapsed 1930-02-24 1932-11-22 0 Details
US1888093A Hydraulic brake Expired / Lapsed 1931-06-29 1932-11-15 0 Details
US1886856A Mechanism for traversing alpha recording medium Expired / Lapsed 1931-12-15 1932-11-08 0 Details
US1886815A Method and apparatus for generating electrical oscillations Expired / Lapsed 1929-03-05 1932-11-08 0 Details
US1885282A Advertising sign for alpha vehicle top Expired / Lapsed 1931-09-05 1932-11-01 0 Details
US1884589A Method of making artificial limbs Expired / Lapsed 1931-08-15 1932-10-25 0 Details
US1884797A Temperature and circuit control system for high frequency s… Expired / Lapsed 1929-03-12 1932-10-25 0 Details
US1883384A Process of producing yarn Expired / Lapsed 1930-02-18 1932-10-18 0 Details
US1883715A Armored filter element Expired / Lapsed 1928-09-20 1932-10-18 0 Details
US1882021A Conduit connecter Expired / Lapsed 1931-01-29 1932-10-11 0 Details
US1881554A Fluid pump Expired / Lapsed 1930-01-02 1932-10-11 0 Details
US1882213A Trocar Expired / Lapsed 1929-12-09 1932-10-11 0 Details
US1882377A Method and means for regulating the growth of plants Expired / Lapsed 1928-09-28 1932-10-11 0 Details
US1878417A Device for attaching fabric to airplane ribs Expired / Lapsed 1931-12-01 1932-09-20 0 Details
US1878671A Dilator Expired / Lapsed 1929-07-02 1932-09-20 0 Details
US1878885A Method of manufacturing rubber hose Expired / Lapsed 1929-02-12 1932-09-20 0 Details
US1872782A Registering device Expired / Lapsed 1929-07-05 1932-08-23 0 Details
US1871687A Waxing of paper and wrapping of articles therein Expired / Lapsed 1929-03-25 1932-08-16 0 Details
US1869726A Surgical apparatus Expired / Lapsed 1930-02-10 1932-08-02 0 Details
US1866581A Self-focusing camera Expired / Lapsed 1931-06-16 1932-07-12 0 Details
US1865866A Fastening device Expired / Lapsed 1930-08-26 1932-07-05 0 Details
US1863755A Pipe cleaning method Expired / Lapsed 1930-07-18 1932-06-21 0 Details
US1864097A Manifolding material Expired / Lapsed 1927-10-06 1932-06-21 0 Details
US1863057A Surgical drain Expired / Lapsed 1930-03-03 1932-06-14 0 Details
US1861532A Elevation post Expired / Lapsed 1932-01-14 1932-06-07 0 Details
US1859793A Casing head Expired / Lapsed 1930-04-19 1932-05-24 0 Details
US1857488A Bill clip Expired / Lapsed 1931-02-11 1932-05-10 0 Details
US1856865A Rectifier Expired / Lapsed 1926-07-23 1932-05-03 0 Details
US1849622A Dialyzer frame Expired / Lapsed 1928-06-13 1932-03-15 0 Details
US1849127A Centrifugal pump Expired / Lapsed 1926-11-19 1932-03-15 0 Details
US1848318A Elastic shoe lace and catch therefor Expired / Lapsed 1931-02-27 1932-03-08 0 Details
US1838688A Hose supporter and protector Expired / Lapsed 1930-05-02 1931-12-29 0 Details
US1838118A Cementing machine Expired / Lapsed 1929-12-12 1931-12-29 0 Details
US1835907A Automatic damper control Expired / Lapsed 1931-05-11 1931-12-08 0 Details
US1835287A Heart trocar Expired / Lapsed 1929-12-18 1931-12-08 0 Details
US1833687A Surgical snare Expired / Lapsed 1930-07-18 1931-11-24 0 Details
US1831151A Temperature control system for frequency determining elemen… Expired / Lapsed 1929-04-18 1931-11-10 0 Details
US1818492A Method of making conveyer and elevator screws Expired / Lapsed 1928-06-08 1931-08-11 0 Details
US1818708A Radio dynamic control of gliding bodies Expired / Lapsed 1922-11-15 1931-08-11 0 Details
US1817872A Testing device Expired / Lapsed 1929-06-28 1931-08-04 0 Details
US1814791A Diathermy Expired / Lapsed 1928-05-04 1931-07-14 0 Details
US1811149A Steering control for aeroplanes Expired / Lapsed 1930-01-25 1931-06-23 0 Details
US1810031A Pocketknife Expired / Lapsed 1930-03-03 1931-06-16 0 Details
US1808101A Hose clamp Expired / Lapsed 1927-12-12 1931-06-02 0 Details
US1805609A Lubricating system Expired / Lapsed 1929-03-30 1931-05-19 0 Details
US1806365A System and apparatus for spraying Expired / Lapsed 1925-05-18 1931-05-19 0 Details
US1804847A Paper interfolding machine Expired / Lapsed 1930-01-20 1931-05-12 0 Details
US1800692A Bluing and dyeing device Expired / Lapsed 1929-05-03 1931-04-14 0 Details
US1799590A Evacuator Expired / Lapsed 1928-01-07 1931-04-07 0 Details
US1796919A Engine-oil-level indicator mechanism Expired / Lapsed 1928-08-18 1931-03-17 0 Details
US1796243A Holder for road maps or logs Expired / Lapsed 1930-05-23 1931-03-10 0 Details
US1794685A Cardiological instrument and method Expired / Lapsed 1928-07-13 1931-03-03 0 Details
US1786361A Process for the production of filter sieves and sieves prod… Expired / Lapsed 1927-01-28 1930-12-23 0 Details
US1780566A Process of coating cartridges Expired / Lapsed 1928-01-27 1930-11-04 0 Details
US1777670A Material feeding and weighing device Expired / Lapsed 1928-07-28 1930-10-07 0 Details
US1777410A Variable relay condenser Expired / Lapsed 1928-03-06 1930-10-07 0 Details
US1776888A Method and apparatus for making flanged containers Expired / Lapsed 1927-07-23 1930-09-30 0 Details
US1776366A Method of making hollow objects of synthetic resin materials Expired / Lapsed 1927-08-12 1930-09-23 0 Details
US1771519A Liquid-purifying device Expired / Lapsed 1927-09-06 1930-07-29 0 Details
US1771216A Insulating body of spun glass Expired / Lapsed 1926-12-09 1930-07-22 0 Details
US1761517A Folding or interfolding machine Expired / Lapsed 1929-06-12 1930-06-03 0 Details
US1760323A Hose connection for air gauges Expired / Lapsed 1926-06-22 1930-05-27 0 Details
US1757547A Phonograph pick-up Expired / Lapsed 1929-06-12 1930-05-06 0 Details
US1755210A Method of making couplings Expired / Lapsed 1927-08-05 1930-04-22 0 Details
US1753975A Control apparatus Expired / Lapsed 1927-03-02 1930-04-08 0 Details
US1752117A Temperature detector Expired / Lapsed 1928-09-28 1930-03-25 0 Details
US1749444A Signal system Expired / Lapsed 1926-07-20 1930-03-04 0 Details
US1747724A Golf-ball washer Expired / Lapsed 1924-11-12 1930-02-18 0 Details
US1745175A Method and apparatus for controlling electric currents Expired / Lapsed 1926-10-08 1930-01-28 0 Details
US1743056A Spraying device Expired / Lapsed 1927-10-17 1930-01-07 0 Details
US1736182A Stomach tube Expired / Lapsed 1927-12-12 1929-11-19 0 Details
US1733239A Applicator for conducting ultra-violet rays Expired / Lapsed 1929-01-31 1929-10-29 0 Details
US1731302A Teething device Expired / Lapsed 1929-04-22 1929-10-15 0 Details
US1730873A Electric attachment fitting Expired / Lapsed 1927-12-22 1929-10-08 0 Details
US1722474A Surgical snare Expired / Lapsed 1928-02-20 1929-07-30 0 Details
US1719428A Syringe Expired / Lapsed 1927-05-21 1929-07-02 0 Details
US1717969A Pump Expired / Lapsed 1927-01-06 1929-06-18 0 Details
US1716775A Optical pyrometer Expired / Lapsed 1926-08-12 1929-06-11 0 Details
US1707917A Card carrier for visible card indexes Expired / Lapsed 1927-11-26 1929-04-02 0 Details
US1707097A Power hand and bench saw Expired / Lapsed 1927-08-22 1929-03-26 0 Details
US1706225A Method of roasting and broiling frankfurters Expired / Lapsed 1928-04-13 1929-03-19 0 Details
US1705589A Process of softening water Expired / Lapsed 1926-11-30 1929-03-19 0 Details
US1704141A Thermostatic switch Expired / Lapsed 1926-12-30 1929-03-05 0 Details
US1701973A Electric foot warmer Expired / Lapsed 1927-03-24 1929-02-12 0 Details
US1701027A Fly-open knife Expired / Lapsed 1927-06-29 1929-02-05 0 Details
US1696496A Apparatus for surgical uses Expired / Lapsed 1927-05-11 1928-12-25 0 Details
US1696018A Colonic theraphy apparatus Expired / Lapsed 1926-07-10 1928-12-18 0 Details
US1692996A Method for protecting granular substances and resulting pro… Expired / Lapsed 1925-12-10 1928-11-27 0 Details
US1691441A Tire pressure gauge Expired / Lapsed 1925-08-08 1928-11-13 0 Details
US1691040A Expansion joint with regulating means Expired / Lapsed 1922-04-10 1928-11-13 0 Details
US1686817A Terminal protector for storage batteries Expired / Lapsed 1927-01-31 1928-10-09 0 Details
US1684682A Map holder Expired / Lapsed 1925-09-12 1928-09-18 0 Details
US1681533A Submarine drill Expired / Lapsed 1928-01-13 1928-08-21 0 Details
US1681047A Gas-analysis apparatus Expired / Lapsed 1924-10-11 1928-08-14 0 Details
US1680086A High-frequency apparatus Expired / Lapsed 1925-06-01 1928-08-07 0 Details
US1677671A Ureteral stone extractor and dilator Expired / Lapsed 1926-07-02 1928-07-17 0 Details
US1677641A Draining pad Expired / Lapsed 1926-04-24 1928-07-17 0 Details
US1677337A Antrum drill Expired / Lapsed 1924-09-27 1928-07-17 0 Details
US1675808A Pipe joint Expired / Lapsed 1927-02-05 1928-07-03 0 Details
US1675117A Electrically-conductive titanium oxide Expired / Lapsed 1923-05-03 1928-06-26 0 Details
US1672488A Adjustable gauge Expired / Lapsed 1924-09-09 1928-06-05 0 Details
US1670253A Welding clamp Expired / Lapsed 1926-04-19 1928-05-15 0 Details
US1667325A Veterinary implement Expired / Lapsed 1925-06-11 1928-04-24 0 Details
US1665622A Calling device Expired / Lapsed 1922-02-23 1928-04-10 0 Details
US1663761A Surgical instrument Expired / Lapsed 1927-02-07 1928-03-27 0 Details
US1663203A Banister-construction joint Expired / Lapsed 1927-03-05 1928-03-20 0 Details
US1662227A Surgical instrument Expired / Lapsed 1925-02-25 1928-03-13 0 Details
US1661674A Stovepipe attachment Expired / Lapsed 1925-07-10 1928-03-06 0 Details
US1661506A Combined signal and trouble lamp for automobiles Expired / Lapsed 1922-06-02 1928-03-06 0 Details
US1656409A Toggle bolt Expired / Lapsed 1925-04-16 1928-01-17 0 Details
US1655536A Three-way rigging plate Expired / Lapsed 1927-01-10 1928-01-10 0 Details
US1655554A Device for electric therapeutic treatment Expired / Lapsed 1926-05-08 1928-01-10 0 Details
US1653177A Flow indicator Expired / Lapsed 1924-12-26 1927-12-20 0 Details
US1649399A Apparatus for sampling oils Expired / Lapsed 1925-09-19 1927-11-15 0 Details
US1643615A Sanitary napkin Expired / Lapsed 1926-08-30 1927-09-27 0 Details
US1643067A Windshield wiper Expired / Lapsed 1926-04-29 1927-09-20 0 Details
US1641976A Hypodermic syringe Expired / Lapsed 1926-08-21 1927-09-13 0 Details
US1641199A Recording system Expired / Lapsed 1923-03-14 1927-09-06 0 Details
US1639713A Reproduction of sound Expired / Lapsed 1924-04-10 1927-08-23 0 Details
US1635040A Flow meter Expired / Lapsed 1923-06-09 1927-07-05 0 Details
US1633713A Compound system for transmitting a plurality of values Expired / Lapsed 1924-01-15 1927-06-28 0 Details
US1632332A Electromagnetic sound reproducer Expired / Lapsed 1925-09-28 1927-06-14 0 Details
US1631334A Receptacle Expired / Lapsed 1925-08-20 1927-06-07 0 Details
US1627554A Socket or receptacle for concrete work Expired / Lapsed 1925-06-19 1927-05-10 0 Details
US1627901A Bark peeler Expired / Lapsed 1924-10-20 1927-05-10 0 Details
US1627941A Surgical instrument Expired / Lapsed 1924-10-16 1927-05-10 0 Details
US1622625A Gasket seal for liquid containers Expired / Lapsed 1926-08-04 1927-03-29 0 Details
US1622930A Turbo machine Expired / Lapsed 1924-08-21 1927-03-29 0 Details
US1622664A Hollow structure and method of making the same Expired / Lapsed 1923-04-21 1927-03-29 0 Details
US1621536A Kit for wagons, trucks, and the like Expired / Lapsed 1926-09-14 1927-03-22 0 Details
US1622211A Knee brace Expired / Lapsed 1926-03-18 1927-03-22 0 Details
US1620776A Tropical house Expired / Lapsed 1926-06-24 1927-03-15 0 Details
US1619819A Gate Expired / Lapsed 1925-11-19 1927-03-08 0 Details
US1619142A Sewing needle Expired / Lapsed 1926-04-07 1927-03-01 0 Details
US1619569A Expansible fastening Expired / Lapsed 1925-12-19 1927-03-01 0 Details
US1616623A Index device Expired / Lapsed 1924-04-17 1927-02-08 0 Details
US1616063A Adjustable cylindrical tubing and method of making the same Expired / Lapsed 1924-08-06 1927-02-01 0 Details
US1614714A Display apparatus Expired / Lapsed 1925-08-22 1927-01-18 0 Details
US1614949A Folding hatchet Expired / Lapsed 1925-03-26 1927-01-18 0 Details
US1614331A Electrical heating element Expired / Lapsed 1924-12-24 1927-01-11 0 Details
US1611878A Rug needle Expired / Lapsed 1925-12-30 1926-12-28 0 Details
US1611179A Display tray Expired / Lapsed 1926-02-03 1926-12-21 0 Details
US1610305A Antiglare screen Expired / Lapsed 1925-04-08 1926-12-14 0 Details
US1609660A Concrete pressure-pipe joint Expired / Lapsed 1925-02-19 1926-12-07 0 Details
US1606688A Belt Expired / Lapsed 1925-06-27 1926-11-09 0 Details
US1606355A Kinetic device Expired / Lapsed 1923-11-05 1926-11-09 0 Details
US1603940A Electrical appliance Expired / Lapsed 1924-08-25 1926-10-19 0 Details
US1601444A Automatic control valve for refrigeration systems Expired / Lapsed 1924-09-13 1926-09-28 0 Details
US1597828A System for measuring or transmitting variable conditions Expired / Lapsed 1923-03-14 1926-08-31 0 Details
US1596558A Method and apparatus for amplifying electric currents Expired / Lapsed 1922-09-29 1926-08-17 0 Details
US1595050A Cystoscope and similar instrument Expired / Lapsed 1923-08-06 1926-08-03 0 Details
US1593776A Lingerie clasp Expired / Lapsed 1925-09-17 1926-07-27 0 Details
US1592836A Surgical instrument Expired / Lapsed 1924-11-28 1926-07-20 0 Details
US1592535A Needle and method of making same Expired / Lapsed 1925-12-24 1926-07-13 0 Details
US1585104A Medical applicator Expired / Lapsed 1923-10-13 1926-05-18 0 Details
US1585591A Means for electric proof and measuring of the distance of e… Expired / Lapsed 1923-07-17 1926-05-18 0 Details
US1583381A Film pack Expired / Lapsed 1918-12-13 1926-05-04 0 Details
US1577257A Awning for vehicles Expired / Lapsed 1923-10-12 1926-03-16 0 Details
US1573419A Applicator for therapeutic lamps Expired / Lapsed 1922-06-12 1926-02-16 0 Details
US1571849A Method of making building blocks Expired / Lapsed 1925-06-25 1926-02-02 0 Details
US1568214A Apparatus for watering areas of land Expired / Lapsed 1922-07-28 1926-01-05 0 Details
US1554811A Fluid meter Expired / Lapsed 1920-02-11 1925-09-22 0 Details
US1554118A Bottle holder Expired / Lapsed 1921-03-28 1925-09-15 0 Details
US1551843A Photometer Expired / Lapsed 1923-12-31 1925-09-01 0 Details
US1551884A Dish washing and drying machine Expired / Lapsed 1922-02-25 1925-09-01 0 Details
US1550048A Apparatus for recording electrical signals Expired / Lapsed 1922-06-17 1925-08-18 0 Details
US1549115A Gauge Expired / Lapsed 1923-07-21 1925-08-11 0 Details
US1548481A Shutter-release holder Expired / Lapsed 1924-01-19 1925-08-04 0 Details
US1539555A Built-in duct for bakeries' proof boxes Expired / Lapsed 1924-11-20 1925-05-26 0 Details
US1539143A Denture Expired / Lapsed 1922-06-30 1925-05-26 0 Details
US1537568A Proportional-gas-sample collector Expired / Lapsed 1923-06-13 1925-05-12 0 Details
US1534451A Combined rotary unit Expired / Lapsed 1922-04-11 1925-04-21 0 Details
US1533010A Pattern Expired / Lapsed 1922-12-07 1925-04-07 0 Details
US1531414A Apparatus for therapeutic applications Expired / Lapsed 1924-01-17 1925-03-31 0 Details
US1529155A Automatic weigher Expired / Lapsed 1923-05-15 1925-03-10 0 Details
US1525828A Appliance for delivering substances in powder form Expired / Lapsed 1923-07-12 1925-02-10 0 Details
US1521124A Dishwasher Expired / Lapsed 1924-02-15 1924-12-30 0 Details
US1521241A Electrical insulating medium Expired / Lapsed 1920-06-03 1924-12-30 0 Details
US1520132A System and means of control Expired / Lapsed 1919-12-27 1924-12-23 0 Details
US1518715A Ventilator Expired / Lapsed 1923-06-30 1924-12-09 0 Details
US1518211A Electrical device for measuring the conductivity of the sto… Expired / Lapsed 1923-02-23 1924-12-09 0 Details
US1517556A Subaqueous drill Expired / Lapsed 1923-11-08 1924-12-02 0 Details
US1515593A Heating rock-drill bits and the like Expired / Lapsed 1923-01-13 1924-11-18 0 Details
US1516337A Purifying liquids Expired / Lapsed 1922-09-29 1924-11-18 0 Details
US1515556A Manufacture of artificial silk and the like Expired / Lapsed 1922-01-10 1924-11-11 0 Details
US1514412A Hose clamp Expired / Lapsed 1924-02-19 1924-11-04 0 Details
US1513322A Color cinematography Expired / Lapsed 1922-10-05 1924-10-28 0 Details
US1511825A Dishwasher Expired / Lapsed 1919-08-04 1924-10-14 0 Details
US1506262A Needle Expired / Lapsed 1922-06-01 1924-08-26 0 Details
US1505030A Drag saw Expired / Lapsed 1922-07-13 1924-08-12 0 Details
US1498120A Index device Expired / Lapsed 1921-05-04 1924-06-17 0 Details
US1497194A Radio alarm system Expired / Lapsed 1922-04-13 1924-06-10 0 Details
US1496101A Thermoelectric temperature measuring and control system Expired / Lapsed 1923-02-10 1924-06-03 0 Details
US1493240A Surgical bone cutter and extractor Expired / Lapsed 1923-02-15 1924-05-06 0 Details
US1492919A Telephonic transmitter Expired / Lapsed 1919-04-10 1924-05-06 0 Details
US1491614A Fabric-cutting knife Expired / Lapsed 1923-04-03 1924-04-22 0 Details
US1491040A Process of manufacturing selenium cells for photo-electric … Expired / Lapsed 1921-03-24 1924-04-22 0 Details
US1488211A Oil-well-controlling valve attachment Expired / Lapsed 1923-01-24 1924-03-25 0 Details
US1488048A Manufacture of weftless fabric Expired / Lapsed 1922-12-14 1924-03-25 0 Details
US1482166A Curtain bracket Expired / Lapsed 1921-10-22 1924-01-29 0 Details
US1480746A Separable fastener Expired / Lapsed 1921-10-31 1924-01-15 0 Details
US1480377A Fiber shipping case Expired / Lapsed 1922-02-07 1924-01-08 0 Details
US1478471A Car refrigeration Expired / Lapsed 1921-09-30 1923-12-25 0 Details
US1477109A Process for the manufacture of zinc cylinders for primary b… Expired / Lapsed 1920-05-11 1923-12-11 0 Details
US1475365A Apparatus for measuring high temperatures Expired / Lapsed 1920-02-09 1923-11-27 0 Details
US1474903A Pyrometer Expired / Lapsed 1922-07-26 1923-11-20 0 Details
US1474674A Method of manufacturing yeast Expired / Lapsed 1920-09-20 1923-11-20 0 Details
US1469946A Exit light Expired / Lapsed 1923-01-24 1923-10-09 0 Details
US1470337A Terminal connecter for electrical windings Expired / Lapsed 1922-01-30 1923-10-09 0 Details
US1470196A Hose coupling Expired / Lapsed 1921-02-15 1923-10-09 0 Details
US1467335A Button Expired / Lapsed 1922-11-17 1923-09-11 0 Details
US1455287A Electric heater Expired / Lapsed 1922-08-23 1923-05-15 0 Details
US1447554A Fan Expired / Lapsed 1919-04-03 1923-03-06 0 Details
US1446811A Work-holding clamp Expired / Lapsed 1921-03-10 1923-02-27 0 Details
US1444714A Medical appliance of suction type Expired / Lapsed 1920-06-30 1923-02-06 0 Details
US1444417A Multiplex system in teledynamic control Expired / Lapsed 1917-10-17 1923-02-06 0 Details
US1443031A Machine for applying sealing material to can lids Expired / Lapsed 1920-10-04 1923-01-23 0 Details
US1442445A Composite wood and metal bearing Expired / Lapsed 1922-05-13 1923-01-16 0 Details
US1440737A Phonograph-record holder Expired / Lapsed 1921-06-15 1923-01-02 0 Details
US1437331A Process of cleaning paint, grease, dirt, and other matter f… Expired / Lapsed 1921-02-21 1922-11-28 0 Details
US1435307A Yielding unit Expired / Lapsed 1921-03-28 1922-11-14 0 Details
US1432794A Lumberman's hammer Expired / Lapsed 1920-04-23 1922-10-24 0 Details
US1431613A Telescoping inside gauge and indicator Expired / Lapsed 1921-12-22 1922-10-10 0 Details
US1431350A Centrifugal pump Expired / Lapsed 1921-06-24 1922-10-10 0 Details
US1426334A Selective reception of alternating currents Expired / Lapsed 1922-03-30 1922-08-15 0 Details
US1424365A Radiosignaling Expired / Lapsed 1920-04-05 1922-08-01 0 Details
US1423276A Paper-folding machine Expired / Lapsed 1921-04-09 1922-07-18 0 Details
US1421221A Radiator for explosion engines Expired / Lapsed 1919-12-13 1922-06-27 0 Details
US1417993A Pressing mechanism for sign units Expired / Lapsed 1921-07-16 1922-05-30 0 Details
US1416957A Baluster-railing construction Expired / Lapsed 1921-05-26 1922-05-23 0 Details
US1416525A Retainer for lightning rods or ground wires Expired / Lapsed 1921-06-15 1922-05-16 0 Details
US1416614A Syringe with progressively-graduated automatic action Expired / Lapsed 1913-11-28 1922-05-16 0 Details
US1414012A Golf-stroke-guiding device Expired / Lapsed 1921-01-13 1922-04-25 0 Details
US1414077A Method and apparatus for inspecting materiai Expired / Lapsed 1919-08-08 1922-04-25 0 Details
US1413101A Tool holder Expired / Lapsed 1920-08-27 1922-04-18 0 Details
US1412020A Method of producing vegetable adhesives Expired / Lapsed 1915-03-24 1922-04-04 0 Details
US1410793A Crystal detector for wireless telegraphy Expired / Lapsed 1920-11-09 1922-03-28 0 Details
US1410143A Embalming instrument Expired / Lapsed 1921-05-16 1922-03-21 0 Details
US1407401A Pneumatic-tire casing Expired / Lapsed 1921-07-21 1922-02-21 0 Details
US1400149A Electrotherapeutic apparatus Expired / Lapsed 1920-12-17 1921-12-13 0 Details
US1397732A Surgical instrument Expired / Lapsed 1920-04-13 1921-11-22 0 Details
US1398004A Embroidery-needle Expired / Lapsed 1920-01-07 1921-11-22 0 Details
US1394760A Automatic toller Expired / Lapsed 1919-10-23 1921-10-25 0 Details
US1387258A Nut-lock Expired / Lapsed 1920-07-20 1921-08-09 0 Details
US1373319A Indicator Expired / Lapsed 1920-06-16 1921-03-29 0 Details
US1372579A Knife Expired / Lapsed 1918-08-14 1921-03-22 0 Details
US1370688A System of radiocontrol Expired / Lapsed 1914-01-22 1921-03-08 0 Details
US1369919A Hermetically-sealed casket Expired / Lapsed 1920-03-19 1921-03-01 0 Details
US1366555A Illuminating-shell Expired / Lapsed 1918-12-30 1921-01-25 0 Details
US1353152A Production of molded articles Expired / Lapsed 1917-08-22 1920-09-21 0 Details
US1352255A Safety-damper for oil-stills and the like Expired / Lapsed 1920-05-11 1920-09-07 0 Details
US1351753A Mechanical movement Expired / Lapsed 1919-06-30 1920-09-07 0 Details
US1351441A Absorbent-bandage package Expired / Lapsed 1919-01-03 1920-08-31 0 Details
US1351538A Indicator for flying-machines Expired / Lapsed 1917-09-29 1920-08-31 0 Details
US1349290A War-aeroplane fuel-tank Expired / Lapsed 1917-02-07 1920-08-10 0 Details
US1346306A Pliers Expired / Lapsed 1917-07-30 1920-07-13 0 Details
US1344896A Copying-camera Expired / Lapsed 1919-05-08 1920-06-29 0 Details
US1343002A Container structure Expired / Lapsed 1919-03-03 1920-06-08 0 Details
US1342054A Inflatable garment Expired / Lapsed 1919-06-18 1920-06-01 0 Details
US1339713A Cuff-button Expired / Lapsed 1916-06-06 1920-05-11 0 Details
US1332527A Band-making machine Expired / Lapsed 1916-01-12 1920-03-02 0 Details
US1331737A Dilator Expired / Lapsed 1918-03-30 1920-02-24 0 Details
US1331311A Flexible power-transmitting device Expired / Lapsed 1919-05-16 1920-02-17 0 Details
US1329690A Collapsible paper box Expired / Lapsed 1919-08-09 1920-02-03 0 Details
US1327721A Method of manufacturing fibrous cement products Expired / Lapsed 1919-02-12 1920-01-13 0 Details
US1302004A Mouth-protector. Expired / Lapsed 1919-01-16 1919-04-29 0 Details
US1292981A Fuel distributing and controlling mechanism for internal-co… Expired / Lapsed 1918-11-30 1919-01-28 0 Details
US1292455A Combined tissue and needle-extracting forceps. Expired / Lapsed 1918-06-04 1919-01-28 0 Details
US1288647A Respirator-mask. Expired / Lapsed 1916-11-29 1918-12-24 0 Details
US1287396A Electric selective device. Expired / Lapsed 1916-09-14 1918-12-10 0 Details
US1282881A Pneumatic dilator. Expired / Lapsed 1917-07-07 1918-10-29 0 Details
US1282000A Intravenous-injection apparatus. Expired / Lapsed 1918-06-20 1918-10-15 0 Details
US1279069A Syringe. Expired / Lapsed 1917-12-28 1918-09-17 0 Details
US1268245A Display-rack. Expired / Lapsed 1917-06-13 1918-06-04 0 Details
US1265706A Collar and lead ring and process of coupling drill-pipes. Expired / Lapsed 1917-04-28 1918-05-07 0 Details
US1263661A Means for punching holes under water. Expired / Lapsed 1917-02-08 1918-04-23 0 Details
US1262180A Method of making and projecting pictures. Expired / Lapsed 1917-01-06 1918-04-09 0 Details
US1261412A Method of preparing immature vegetables for food. Expired / Lapsed 1917-07-24 1918-04-02 0 Details
US1242622A Multistretchable leather substitute. Expired / Lapsed 1917-02-08 1917-10-09 0 Details
US1236581A Apparatus for extracting values from flue-dust. Expired / Lapsed 1917-05-16 1917-08-14 0 Details
US1234582A Hypodermic syringe. Expired / Lapsed 1916-12-14 1917-07-24 0 Details
US1228113A Leg-brace. Expired / Lapsed 1916-06-19 1917-05-29 0 Details
US1226636A Tool. Expired / Lapsed 1916-05-20 1917-05-22 0 Details
US1225431A Knockdown furniture. Expired / Lapsed 1916-03-08 1917-05-08 0 Details
US1224447A Valve mechanism. Expired / Lapsed 1916-04-11 1917-05-01 0 Details
US1218982A Cork and leather substitute and process of making the same. Expired / Lapsed 1914-07-16 1917-03-13 0 Details
US1214022A Apparatus for wireless telegraphy and the like. Expired / Lapsed 1912-08-19 1917-01-30 0 Details
US1213001A Therapeutic apparatus. Expired / Lapsed 1916-05-02 1917-01-16 0 Details
US1212707A Detachable connection for chain-links. Expired / Lapsed 1913-04-09 1917-01-16 0 Details
US1211928A Colon-irrigator. Expired / Lapsed 1916-03-25 1917-01-09 0 Details
US1198166A Retainer for container-closures. Expired / Lapsed 1914-05-14 1916-09-12 0 Details
US1189160A Wire-holding means for electric conductors. Expired / Lapsed 1915-03-30 1916-06-27 0 Details
US1188180A Surgical tip. Expired / Lapsed 1916-04-11 1916-06-20 0 Details
US1186813A Pipe-coupling. Expired / Lapsed 1913-09-12 1916-06-13 0 Details
US1179129A Suction and compression cupping apparatus. Expired / Lapsed 1915-04-27 1916-04-11 0 Details
US1178179A Brush. Expired / Lapsed 1914-05-20 1916-04-04 0 Details
US1177451A Combination mold and shipping-container for lubricants. Expired / Lapsed 1916-02-15 1916-03-28 0 Details
US1176288A Insulating splice-cover. Expired / Lapsed 1914-03-06 1916-03-21 0 Details
US1175834A Hose-coupling. Expired / Lapsed 1914-10-01 1916-03-14 0 Details
US1174241A Automatic controlling or recording apparatus. Expired / Lapsed 1910-01-03 1916-03-07 0 Details
US1173031A Syringe. Expired / Lapsed 1915-11-27 1916-02-22 0 Details
US1171449A Process of retreading old auto-tires. Expired / Lapsed 1915-01-08 1916-02-15 0 Details
US1171758A Hydraulic irrigating-machine. Expired / Lapsed 1914-09-21 1916-02-15 0 Details
US1171267A Insulator for electrically-charged wires. Expired / Lapsed 1915-01-04 1916-02-08 0 Details
US1170334A Pliers. Expired / Lapsed 1915-10-23 1916-02-01 0 Details
US1163565A Automatic web-handling apparatus. Expired / Lapsed 1915-07-02 1915-12-07 0 Details
US1156765A Ball-bearing hinge. Expired / Lapsed 1915-07-29 1915-10-12 0 Details
US1155147A Pumping means for massage devices. Expired / Lapsed 1913-02-21 1915-09-28 0 Details
US1151300A Instrument for the transfusion of blood. Expired / Lapsed 1915-01-22 1915-08-24 0 Details
US1151502A Translucent picture-projection screen. Expired / Lapsed 1913-12-24 1915-08-24 0 Details
US1149004A Lamp-shade. Expired / Lapsed 1914-11-28 1915-08-03 0 Details
US1144776A Method of and means for measuring temperature and resistivi… Expired / Lapsed 1914-10-03 1915-06-29 0 Details
US1143655A Method of making a metallic structure. Expired / Lapsed 1912-10-28 1915-06-22 0 Details
US1142771A Electric heating system. Expired / Lapsed 1911-09-07 1915-06-08 0 Details
US1139627A Paper-binding clip. Expired / Lapsed 1910-07-02 1915-05-18 0 Details
US1138911A Tire-protector. Expired / Lapsed 1913-09-29 1915-05-11 0 Details
US1138219A Expansible screw, bolt, or nail. Expired / Lapsed 1914-09-03 1915-05-04 0 Details
US1138513A Electric meter. Expired / Lapsed 1913-02-27 1915-05-04 0 Details
US1133103A Light-projecting apparatus. Expired / Lapsed 1914-01-08 1915-03-23 0 Details
US1133167A Automatic gasolene-service. Expired / Lapsed 1914-01-08 1915-03-23 0 Details
US1131155A Needle. Expired / Lapsed 1913-10-08 1915-03-09 0 Details
US1129619A Inhaling system. Expired / Lapsed 1914-07-10 1915-02-23 0 Details
US1128552A Detector. Expired / Lapsed 1914-06-04 1915-02-16 0 Details
US1127720A Telescope with variable magnification. Expired / Lapsed 1912-10-15 1915-02-09 0 Details
US1125411A Rivet heating and holding tool. Expired / Lapsed 1909-08-23 1915-01-19 0 Details
US1124991A Pruning-tool. Expired / Lapsed 1913-06-19 1915-01-12 0 Details
US1124122A Packing-case. Expired / Lapsed 1914-01-29 1915-01-05 0 Details
US1122844A Faucet-coupling attachment. Expired / Lapsed 1914-06-03 1914-12-29 0 Details
US1123206A Bottle-closure. Expired / Lapsed 1912-12-20 1914-12-29 0 Details
US1121722A Agricultural engineering. Expired / Lapsed 1906-10-06 1914-12-22 0 Details
US1121072A Non-heat-conducting receptacle. Expired / Lapsed 1912-06-20 1914-12-15 0 Details
US1119080A Automatic door-operating mechanism. Expired / Lapsed 1910-12-27 1914-12-01 0 Details
US1117558A Combination-tool. Expired / Lapsed 1913-10-13 1914-11-17 0 Details
US1114612A Electrical recorder. Expired / Lapsed — 1914-10-20 0 Details
US1113994A Joint for brewers' and like pipes. Expired / Lapsed 1913-09-04 1914-10-20 0 Details
US1113179A Combined invisible window-screen and ventilator for buildin… Expired / Lapsed 1913-11-17 1914-10-13 0 Details
US1113430A Hot-air-register attachment. Expired / Lapsed 1913-10-13 1914-10-13 0 Details
US1113232A Water-heater. Expired / Lapsed 1910-11-28 1914-10-13 0 Details
US1111660A Wall-anchor. Expired / Lapsed 1913-06-16 1914-09-22 0 Details
US1110818A Speculum. Expired / Lapsed 1914-07-29 1914-09-15 0 Details
US1107771A Plaiting-machine for producing textile fabrics resembling v… Expired / Lapsed 1914-04-29 1914-08-18 0 Details
US1106761A Self-locking junction-box coupling. Expired / Lapsed 1914-02-06 1914-08-11 0 Details
US1106667A Eyeless needle. Expired / Lapsed 1913-06-09 1914-08-11 0 Details
US1105561A Dish cleaner and drier. Expired / Lapsed 1913-08-11 1914-07-28 0 Details
US1102131A Apparatus for producing distilled water. Expired / Lapsed 1914-01-19 1914-06-30 0 Details
US1101266A Pump. Expired / Lapsed 1913-01-18 1914-06-23 0 Details
US1100799A Hypodermic syringe. Expired / Lapsed 1912-09-28 1914-06-23 0 Details
US1101000A Apparatus for utilizing solar heat. Expired / Lapsed 1903-06-01 1914-06-23 0 Details
US1100191A Electric furnace. Expired / Lapsed 1913-09-15 1914-06-16 0 Details
US1100010A Hypodermic-solution holder. Expired / Lapsed 1913-04-08 1914-06-16 0 Details
US1099199A Thermic balance or radiometer. Expired / Lapsed 1912-07-31 1914-06-09 0 Details
US1094879A Manufacture of rubber hose. Expired / Lapsed 1912-03-28 1914-04-28 0 Details
US1092447A Glazier's tool. Expired / Lapsed 1913-08-21 1914-04-07 0 Details
US1090914A Paper-comminuting machine. Expired / Lapsed 1912-03-06 1914-03-24 0 Details
US1089019A Knife. Expired / Lapsed 1912-01-06 1914-03-03 0 Details
US1086532A Liquid-dispensing device. Expired / Lapsed 1913-05-05 1914-02-10 0 Details
US1083721A Flexible occlusive pessary. Expired / Lapsed 1912-12-17 1914-01-06 0 Details
US1070118A Stove attachment. Expired / Lapsed 1912-11-16 1913-08-12 0 Details
US1069916A Union. Expired / Lapsed 1911-06-24 1913-08-12 0 Details
US1061206A Turbine. Expired / Lapsed 1911-01-17 1913-05-06 0 Details
US1061191A Electrical controlling device. Expired / Lapsed 1904-06-25 1913-05-06 0 Details
US1059005A Feed-regulator. Expired / Lapsed 1911-12-05 1913-04-15 0 Details
US1051850A Surgical appliance. Expired / Lapsed — 1913-01-28 0 Details
US1045419A Muffler. Expired / Lapsed 1912-08-28 1912-11-26 0 Details
US1043683A Hose-coupling. Expired / Lapsed 1912-03-28 1912-11-05 0 Details
US1037864A Surgical-needle holder. Expired / Lapsed 1911-04-20 1912-09-10 0 Details
US1036131A Apparatus for projecting pictures during production. Expired / Lapsed 1911-11-03 1912-08-20 0 Details
US1033103A Water-heater. Expired / Lapsed 1912-02-08 1912-07-23 0 Details
US1030317A Separating-case. Expired / Lapsed 1911-10-26 1912-06-25 0 Details
US1021133A Supplemental bottom for pots and pans. Expired / Lapsed 1907-06-19 1912-03-26 0 Details
US1016620A Pipe-coupling. Expired / Lapsed 1910-07-06 1912-02-06 0 Details
US1014272A Wall-packer for oil-wells. Expired / Lapsed 1910-10-10 1912-01-09 0 Details
US1012052A Machine for marking shoe-uppers. Expired / Lapsed 1911-06-12 1911-12-19 0 Details
US1011494A Ventilator. Expired / Lapsed 1910-07-16 1911-12-12 0 Details
US1009769A Damper for heating and ventilating systems. Expired / Lapsed 1911-01-13 1911-11-28 0 Details
US1008816A Pump. Expired / Lapsed 1911-05-06 1911-11-14 0 Details
US1007742A Rotary pump for machine-tools and other purposes. Expired / Lapsed 1911-08-25 1911-11-07 0 Details
US1003232A Urethroscope. Expired / Lapsed 1910-10-15 1911-09-12 0 Details
US1001402A Car-ticket holder. Expired / Lapsed 1910-07-08 1911-08-22 0 Details
US1001069A Pipe-coupling. Expired / Lapsed 1910-04-15 1911-08-22 0 Details
US990999A Power-transmission apparatus. Expired / Lapsed 1909-07-09 1911-05-02 0 Details
GB190723081A Improvements in or relating to Baking and Cooking Tins or P… Expired / Lapsed 1907-10-19 1908-06-25 0 Details
US832201A Dilator. Expired / Lapsed 1904-12-12 1906-10-02 0 Details
US730596A Syringe. Expired / Lapsed 1902-06-18 1903-06-09 0 Details
US669549A Pantograph for marking or cutting boot or shoe patterns, &c. Expired / Lapsed 1899-12-11 1901-03-12 0 Details
US668647A Écraseur. Expired / Lapsed 1900-03-16 1901-02-26 0 Details
US642962A Table. Expired / Lapsed 1899-05-22 1900-02-06 0 Details