Patent US3131694A successfully refreshed from Google Patents.
US3131694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheters
Assignee: Individual
•
Filing: 1963-01-16
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Granted: 1964-05-05
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Expires: 1983-01-16
Abstract
No abstract record available.
Inventors
- 👤 May L Chester
- 👤 Andrew B Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:35
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/10; A61M25/1018; A61M25/10181; A61M25/10184; A61M25/10185; A61M25/10182
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
A CATHETER COMPRISING A DRAINAGE TUBE HAVING AN INLET AT THE UPPER END FOR RECEIVING BODY FLUIDS AND AN OUTLET AT THE LOWER END FOR DISCHARGING SUCH FLUIDS, SAID DRAINAGE TUBE BEING PROVIDED ALONG AN INTERMEDIATE PORTION OF ITS LENGTH WITH A PARALLEL DUCT FOR INFLATION FLUID, SAID INFLATION-FLUID DUCT BEING ISOLATED FROM COMMUNICATION WITH SAID DRAINAGE TUBE, SAID INFLATION-FLUID DUCT TERMINATING AT ITS UPPER END IN A THIN-WALLED JACKET ADAPTED TO BE EXPANDED BY APPLIED FLUID PRESSURE INTO A GENERALLY ROUND BULB ENCOMPASSING BUT ISOLATED FROM SAID DRAINAGE TUBE, SAID INFLATION-FLUID DUCT TERMINATING AT ITS LOWER END IN A BRANCH TUBE; A VALVE IN THE EXTREME LOWER TERMINAL PORTION OF SAID BRANCH TUBE, SAID VALVE COMPRISING A TUBULAR BODY HAVING AN UPPER BORE AND A LOWER BORE, AN ANNULAR VALVE SEAT BETWEEN SAID UPPER AND LOWER BORES, A MOVABLE CLOSURE ELEMENT IN SAID UPPER BORE AND HAVING AN UNDER SURFACE ADAPTED NORMALLY TO SEAT ON SAID ANNULAR VALVE SEAT TO CLOSE THE VALVE, THE DIAMETER OF SAID
Claim 2
Dependent Claim
168 words
A CATHETER COMPRISING A DRAINAGE TUBE HAVING AN INLET AT THE UPPER END FOR RECEIVING BODY FLUIDS AND AN OUTLET AT THE LOWER END FOR DISCHARGING SUCH FLUIDS, SAID DRAINAGE TUBE BEING PROVIDED ALONG AN INTERMEDIATE PORTION OF ITS LENGTH WITH A PARALLEL DUCT FOR INFLATION FLUID, SAID INFLATION-FLUID DUCT BEING ISOLATED FROM COMMUNICATION WITH SAID DRAINAGE TUBE, SAID INFLATION-FLUID DUCT TERMINATING AT ITS UPPER END IN A THIN-WALLED JACKET ADAPTED TO BE EXPANDED BY APPLIED FLUID PRESSURE INTO A GENERALLY ROUND BULB ENCOMPASSING BUT ISOLATED FROM SAID DRAINAGE TUBE, SAID INFLATION-FLUID DUCT TERMINATING AT ITS LOWER END IN A BRANCH TUBE; A VALVE IN THE EXTREME LOWER TERMINAL PORTION OF SAID BRANCH TUBE, SAID VALVE COMPRISING A TUBULAR BODY HAVING AN UPPER BORE AND A LOWER BORE, AN ANNULAR VALVE SEAT BETWEEN SAID UPPER AND LOWER BORES, A MOVABLE CLOSURE ELEMENT IN SAID UPPER BORE AND HAVING AN UNDER SURFACE ADAPTED NORMALLY TO SEAT ON SAID ANNULAR VALVE SEAT TO CLOSE THE VALVE, THE DIAMETER OF SAID
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |