Patent US3294085A successfully refreshed from Google Patents.
US3294085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endoscope
Assignee: American Hospital Supply Corp
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Filing: 1963-09-27
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Granted: 1966-12-27
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Expires: 1983-09-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick J Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:08
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/00163; A61B1/00195; A61B1/00131; A61B1/00135; A61B1/06; A61B1/0607; A61B1/07; A61B1/12; G; G02; G02B; G02B23/00; G02B23/24; G02B23/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
AN ELECTRO-SURGICAL INSTRUMENT, COMPRISING AN ELONGATED ENDOSCOPIC SHEATH HAVING A PROXIMAL AND A DISTAL END, SAID ENDOSCOPIC SHEATH FURTHER COMPRISING AN OUTER TUBE, AN INNER TUBE DEFINING AN ANNULAR SPACE THEREWITH, A PLURALITY OF OPTIC FIBERS DISPOSED IN SAID ANNULAR SPACE, THE DISTAL ENDS OF SAID OPTIC FIBERS BEING SUBSTANTIALLY COEXTENSIVE WITH THE DISTAL ENDS OF SAID INNER AND OUTER TUBES, THE PROXIMAL ENDS OF SAID FIBERS EXTENDING BEYOND THE PROXIMAL END OF SAID SHEATH AND BEING ADAPTED FOR CONNECTION TO A LIGHT SOURCE, SAID FIBERS THROUGHOUT THEIR EXTENT BEING ADHERED TOGETHER AND SUBSTANTIALLY RIGID; AN ELECTRODE ASSEMBLY INCLUDING A CONDUCTIVE ROD ADAPTED TO BE CONNECTED TO A SOURCE OF ELECTRIC CURRENT AND HAVING AN OPERATING LOOP AT ITS FORWARD END; MOUNTING MEANS SUPPORTING SAID ELECTRODE ASSEMBLY AND ADAPTED FOR RECIPROCATING SAID ELECTRODE ASSEMBLY RELATIVE TO SAID SHEATH BETWEEN A PROXIMAL AND A DISTAL POSITION; A TELESCOPE ASSEMBLY CONNECTED TO SAID MOUNTING MEANS AND EXTENDING THROUGH SAID SHEATH; AND MEANS RELEASABLY CONNECTING SAID MOUNTING MEANS TO THE REARWARD END OF SAID SHEATH.
Claim 2
Dependent Claim
172 words
AN ELECTRO-SURGICAL INSTRUMENT, COMPRISING AN ELONGATED ENDOSCOPIC SHEATH HAVING A PROXIMAL AND A DISTAL END, SAID ENDOSCOPIC SHEATH FURTHER COMPRISING AN OUTER TUBE, AN INNER TUBE DEFINING AN ANNULAR SPACE THEREWITH, A PLURALITY OF OPTIC FIBERS DISPOSED IN SAID ANNULAR SPACE, THE DISTAL ENDS OF SAID OPTIC FIBERS BEING SUBSTANTIALLY COEXTENSIVE WITH THE DISTAL ENDS OF SAID INNER AND OUTER TUBES, THE PROXIMAL ENDS OF SAID FIBERS EXTENDING BEYOND THE PROXIMAL END OF SAID SHEATH AND BEING ADAPTED FOR CONNECTION TO A LIGHT SOURCE, SAID FIBERS THROUGHOUT THEIR EXTENT BEING ADHERED TOGETHER AND SUBSTANTIALLY RIGID; AN ELECTRODE ASSEMBLY INCLUDING A CONDUCTIVE ROD ADAPTED TO BE CONNECTED TO A SOURCE OF ELECTRIC CURRENT AND HAVING AN OPERATING LOOP AT ITS FORWARD END; MOUNTING MEANS SUPPORTING SAID ELECTRODE ASSEMBLY AND ADAPTED FOR RECIPROCATING SAID ELECTRODE ASSEMBLY RELATIVE TO SAID SHEATH BETWEEN A PROXIMAL AND A DISTAL POSITION; A TELESCOPE ASSEMBLY CONNECTED TO SAID MOUNTING MEANS AND EXTENDING THROUGH SAID SHEATH; AND MEANS RELEASABLY CONNECTING SAID MOUNTING MEANS TO THE REARWARD END OF SAID SHEATH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |