Patent US5921993A successfully refreshed from Google Patents.
US5921993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of endoscopic tubal ligation
Assignee: Individual
•
Filing: 1997-05-01
•
Granted: 1999-07-13
•
Expires: 2017-05-01
Abstract
Abstract A method of endoscopic tubal ligation includes the steps of introducing a distal end of an instrument assembly at an internal operative site through a small size port, visualizing the internal operative site with an endoscope from externally of the internal operative site, grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly and drawing the anatomical tubular structure into a loop formation and contracting a ligature loop of filamentous ligature material of the instrument assembly around the loop formation to form a ligature without withdrawing the instrument assembly from the internal operative site.
Inventors
- 👤 Inbae Yoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:37
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/12; A61B17/12009; A61B17/12013; A61B17/04; A61B17/0467; A61B17/28; A61B17/29; A61B17/2909; A61B17/00234; A61B2017/00353; A61B90/00; A61B90/30; A61B2090/306; A61B90/36; A61B90/361; A61B2090/3614
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
216 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site; visualizing the internal operative site with an endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end; manipulating the grasping member from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative sites to form a ligature while the anatomical tubular structure remains grasped by the grasping member; cutting a segment of the loop formation proximally of the ligature with a cutting member carried by the grasping member; capturing the cut segment within the cutting member; and withdrawing the grasping member from the patient's body to retrieve the cut segment externally of the patient's body.
Claim 2
Independent Claim
216 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site; visualizing the internal operative site with an endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end; manipulating the grasping member from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative sites to form a ligature while the anatomical tubular structure remains grasped by the grasping member; cutting a segment of the loop formation proximally of the ligature with a cutting member carried by the grasping member; capturing the cut segment within the cutting member; and withdrawing the grasping member from the patient's body to retrieve the cut segment externally of the patient's body.
Claim 3
Independent Claim
194 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site, said step of introducing including introducing a distal end of an endoscope at the internal operative site through the same port as the instrument assembly; visualizing the internal operative site with the endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end; manipulating the grasping member from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; and contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative site, to form a ligature without withdrawing the instrument assembly from the internal operative site.
Claim 4
Independent Claim
194 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site, said step of introducing including introducing a distal end of an endoscope at the internal operative site through the same port as the instrument assembly; visualizing the internal operative site with the endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end; manipulating the grasping member from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; and contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative site, to form a ligature without withdrawing the instrument assembly from the internal operative site.
Claim 5
Independent Claim
194 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site; visualizing the internal operative site with an endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end, said step of grasping including grasping the anatomical tubular structure between a pair of grasping members disposed at the distal end of the instrument assembly; manipulating the grasping members from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; and contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative site, to form a ligature without withdrawing the instrument assembly from the internal operative site.
Claim 6
Independent Claim
194 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an instrument assembly at an internal operative site in a patient's body through a small size port providing communication with the internal operative site from externally thereof with a proximal end of the instrument assembly disposed externally of the operative site; visualizing the internal operative site with an endoscope from externally of the internal operative site; grasping an anatomical tubular structure at the internal operative site with a grasping member of the instrument assembly disposed at the distal end, said step of grasping including grasping the anatomical tubular structure between a pair of grasping members disposed at the distal end of the instrument assembly; manipulating the grasping members from externally of the internal operative site to draw the anatomical tubular structure into a loop formation through a contractible ligature loop of filamentous ligature material of the instrument assembly disposed externally of the distal end; and contracting the ligature loop around the loop formation of the anatomical tubular structure, from externally of the internal operative site, to form a ligature without withdrawing the instrument assembly from the internal operative site.
Claim 7
Dependent Claim
49 words
A method of endoscopic tubal ligation as recited in claim 3 wherein said step of grasping includes moving the grasping members between an open position to receive the anatomical tubular structure between the grasping members and a closed position to capture the anatomical tubular structure between the grasping members.
Claim 8
Dependent Claim
37 words
A method of endoscopic tubal ligation as recited in claim 4 wherein said step of grasping includes receiving the anatomical tubular structure between the grasping members to extend transverse to a longitudinal axis of the instrument assembly.
Claim 9
Dependent Claim
28 words
A method of endoscopic tubal ligation as recited in claim 5 wherein said step of manipulating includes moving the grasping members longitudinally, proximally relative to the ligature loop.
Claim 10
Dependent Claim
28 words
A method of endoscopic tubal ligation as recited in claim 5 wherein said step of manipulating includes moving the ligature loop longitudinally, distally relative to the grasping members.
Claim 11
Dependent Claim
30 words
A method of endoscopic tubal ligation as recited in claim 5 wherein said step of manipulating includes moving the grasping members and the ligature loop longitudinally relative to one another.
Claim 12
Independent Claim
178 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an endoscope, a distal end of a grasping instrument and a distal end of a ligating instrument at an internal operative site in a patient's body through a single, small size port providing communication with the internal operative site from externally thereof with a proximal end of the endoscope, a proximal end of the grasping instrument and a proximal end of the ligating instrument disposed externally of the internal operative site; visualizing the internal operative site, from externally thereof, with the endoscope; grasping an anatomical tubular structure at the internal operative site with a grasping member at the distal end of the grasping instrument; drawing the anatomical tubular structure into a loop formation; positioning a contractible ligature loop of filamentous ligature material carried by the ligating instrument and disposed externally of the distal end of the ligating instrument around the loop formation; and contracting the ligature loop, from the proximal end of the ligating instrument, around the loop formation to form a ligature.
Claim 13
Independent Claim
178 words
A method of endoscopic tubal ligation comprising the steps of introducing a distal end of an endoscope, a distal end of a grasping instrument and a distal end of a ligating instrument at an internal operative site in a patient's body through a single, small size port providing communication with the internal operative site from externally thereof with a proximal end of the endoscope, a proximal end of the grasping instrument and a proximal end of the ligating instrument disposed externally of the internal operative site; visualizing the internal operative site, from externally thereof, with the endoscope; grasping an anatomical tubular structure at the internal operative site with a grasping member at the distal end of the grasping instrument; drawing the anatomical tubular structure into a loop formation; positioning a contractible ligature loop of filamentous ligature material carried by the ligating instrument and disposed externally of the distal end of the ligating instrument around the loop formation; and contracting the ligature loop, from the proximal end of the ligating instrument, around the loop formation to form a ligature.
Claim 14
Dependent Claim
86 words
A method of endoscopic tubal ligation as recited in claim 9 wherein the ligature loop includes a length of filamentous ligature material, a loop segment of the length of filamentous ligature material and a knotting element slidable along the length of filamentous ligature material and said step of contracting includes moving the knotting element along the length of filamentous ligature material in the direction of the loop segment to contract the loop segment around the loop formation of the anatomical tubular structure to form the ligature.
Claim 15
Dependent Claim
42 words
A method of endoscopic tubal ligation as recited in claim 10 and further including, subsequent to said step of contracting, the step of cutting the length of filamentous ligature material proximally of the ligature with a cutting blade of the ligating instrument.
Claim 16
Dependent Claim
60 words
A method of endoscopic tubal ligation as recited in claim 11 and further including, subsequent to said step of cutting, the step of deploying another ligature loop of filamentous ligature material of the ligating instrument externally of the distal end of the ligating instrument for use in forming another ligature without withdrawing the ligating instrument from the internal operative site.
Claim 17
Dependent Claim
66 words
A method of endoscopic tubal ligation as recited in claim 9 wherein the ligature loop includes a length of filamentous ligature material, a loop segment of the length of filamentous ligature material and a knotting element carried by the length of filamentous ligature material and said step of contracting includes the step of pulling the length of filamentous ligature material proximally relative to the knotting element.
Claim 18
Dependent Claim
31 words
A method of endoscopic tubal ligation as recited in claim 9 and further including, subsequent to said step of contracting, the step of cutting the loop formation proximally of the ligature.
Claim 19
Dependent Claim
29 words
A method of endoscopic tubal ligation as recited in claim 14 wherein said step of cutting includes cutting the loop formation with a cutting member of the grasping instrument.
Claim 20
Dependent Claim
21 words
A method of endoscopic tubal ligation as recited in claim 15 wherein said step of cutting includes severing the loop formation.
Claim 21
Dependent Claim
29 words
A method of endoscopic tubal ligation as recited in claim 15 wherein said step of cutting includes collecting a sample of the loop formation for removal from the body.
Claim 22
Independent Claim
263 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; cutting a segment of the loop formation proximally of the ligature with a cutting member of the grasping instrument: retrieving the cut segment externally of the patient's body; repeating said drawing, said contracting, said cutting and said retrieving steps on the other Fallopian tube; and performing an examination on the cut segments to confirm that the cut segments were taken from the Fallopian tubes.
Claim 23
Independent Claim
263 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; cutting a segment of the loop formation proximally of the ligature with a cutting member of the grasping instrument: retrieving the cut segment externally of the patient's body; repeating said drawing, said contracting, said cutting and said retrieving steps on the other Fallopian tube; and performing an examination on the cut segments to confirm that the cut segments were taken from the Fallopian tubes.
Claim 24
Independent Claim
263 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; cutting a segment of the loop formation proximally of the ligature with a cutting member introduced in the abdominal cavity through a small size port; repeating said drawing, said contracting and said cutting steps on the other Fallopian tube: withdrawing the cut segments from the patient's body; and examining the cut segments to confirm that the cut segments were taken from the Fallopian tubes.
Claim 25
Independent Claim
263 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; cutting a segment of the loop formation proximally of the ligature with a cutting member introduced in the abdominal cavity through a small size port; repeating said drawing, said contracting and said cutting steps on the other Fallopian tube: withdrawing the cut segments from the patient's body; and examining the cut segments to confirm that the cut segments were taken from the Fallopian tubes.
Claim 26
Dependent Claim
30 words
A method of endoscopic tubal ligation as recited in claim 19 and further including, after said step of cutting, the step of withdrawing the cut segment from the abdominal cavity.
Claim 27
Dependent Claim
29 words
A method of endoscopic tubal ligation as recited in claim 20 and further including, after said step of withdrawing, the step of performing a biopsy on the cut segment.
Claim 28
Dependent Claim
33 words
A method of endoscopic tubal ligation as recited in claim 21 wherein said step of introducing the grasping instrument includes introducing the cutting member in the abdominal cavity along with the grasping instrument.
Claim 29
Dependent Claim
37 words
A method of endoscopic tubal ligation as recited in claim 19 wherein said steps of introducing include introducing the endoscope through a first port and introducing the ligating instrument and the grasping instrument through a second port.
Claim 30
Independent Claim
234 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity, said steps of introducing including introducing each of the endoscope, the ligating instrument and the grasping instrument through a different small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
Claim 31
Independent Claim
234 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity, said steps of introducing including introducing each of the endoscope, the ligating instrument and the grasping instrument through a different small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
Claim 32
Independent Claim
240 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity, said steps of introducing including introducing the endoscope and the grasping instrument through a first small size port and introducing the ligating instrument through a second small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
Claim 33
Independent Claim
240 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope externally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument externally of the abdominal cavity, said steps of introducing including introducing the endoscope and the grasping instrument through a first small size port and introducing the ligating instrument through a second small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
Claim 34
Independent Claim
240 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope eternally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument eternally of the abdominal cavity, said steps of introducing including introducing the endoscope and the ligating instrument through a first small size port and introducing the grasping instrument through a second small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
Claim 35
Independent Claim
240 words
A method of endoscopic tubal ligation comprising the steps of introducing an endoscope through a small size port in the abdominal cavity wall to position a distal end of the endoscope in the abdominal cavity and a proximal end of the endoscope eternally of the abdominal cavity to provide visualization of the abdominal cavity from externally thereof; introducing a ligating instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a contractible ligature loop of filamentous ligature material of the ligating instrument in the abdominal cavity and a proximal end of the ligating instrument externally of the abdominal cavity; introducing a grasping instrument in the abdominal cavity through a small size port in the abdominal cavity wall to position a distal end of the grasping instrument to grasp a Fallopian tube in the abdominal cavity and a proximal end of the grasping instrument eternally of the abdominal cavity, said steps of introducing including introducing the endoscope and the ligating instrument through a first small size port and introducing the grasping instrument through a second small size port; drawing the Fallopian tube into a loop formation through the ligature loop with the grasping instrument from externally of the abdominal cavity; contracting the ligature loop around the loop formation with the ligating instrument from externally of the abdominal cavity to form a ligature; and repeating said drawing and contracting steps on the other Fallopian tube.
References Cited (Backward Citations)
DE509640C
Cited
US2012776A
Cited
US1916722A
Cited
US2162297A
Cited
US2227270A
Cited
US2610631A
Cited
US2856933A
Cited
US3033204A
Cited
US3871379A
Cited
US3985138A
Cited
US3870048A
Cited
US3911923A
Cited
US3967625A
Cited
US3989049A
Cited
US4018229A
Cited
US4374523A
Cited
US4103680A
Cited
US4085743A
Cited
US4471766A
Cited
US4177813A
Cited
US4230116A
Cited
US4478221A
Cited
US4773420A
Cited
US4890615A
Cited
US4890615B1
Cited
US5196022A
Cited
US4935027A
Cited
US5217030A
Cited
US5100415A
Cited
US5037433A
Cited
EP0477020A1
Cited
US5257637A
Cited
US5181919A
Cited
US5147373A
Cited
US5144961A
Cited
US5234443A
Cited
US5281238A
Cited
US5163942A
Cited
US5236434A
Cited
US5290284A
Cited
US5281236A
Cited
US5242459A
Cited
US5403330A
Cited
US5571120A
Cited
US5334199A
Cited
US5486186A
Cited
US5312423A
Cited
US5300078A
Cited
US5282809A
Cited
US5405351A
Cited
US5417684A
Cited
US5466241A
Cited
US5722990A
Cited
US5810805A
Cited
US5788716A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-07-12 | 2003-01-11 | 2003-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-12 | 2007-01-11 | 2007-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-12 | 2011-01-11 | 2011-07-13 | $7700.00 | Window Closed / Lapsed |