Patent US3331371A successfully refreshed from Google Patents.
US3331371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catheter having internal flow valve at distal end thereof
Assignee: PROSIT SERVICE CORP
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Filing: 1965-03-09
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Granted: 1967-07-18
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Expires: 1985-03-09
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand A Rocchi
- 👤 Simon Samuel
- 👤 Belivean Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:35
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0067; A61M25/0074; A61M25/0075; A61M25/10; A61M25/1018; A61M25/10184; A61M25/10185; Y; Y10; Y10S; Y10S128/00; Y10S128/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A CATHETER COMPRISING AN ELONGATED TUBE OF FLEXIBLE MATERIAL HAVING A CLOSED END AND AN OPEN END, A FLUID ENTRANCE HOLD IN THE WALL OF SAID TUBE ADJACENT SAID CLOSED END, VALVE MEANS WITHIN SAID TUBE ADJACENT SAID FLUID ENTRANCE HOLE, SAID VALVE MEANS BEING OPERABLE BETWEEN A POSITION IN WHICH THE VALVE MEANS EXTENDS COMPLETELY ACROSS AND CLOSES SAID HOLD TO PREVENT ENTRANCE OF FLUID INTO SAID TUBE AND A POSITION IN WHICH THE FLUID ENTRANCE HOLE IS UNCOVERED TO PERMIT FLUID TO ENTER THE TUBE, AND
Claim 2
Dependent Claim
88 words
A CATHETER COMPRISING AN ELONGATED TUBE OF FLEXIBLE MATERIAL HAVING A CLOSED END AND AN OPEN END, A FLUID ENTRANCE HOLD IN THE WALL OF SAID TUBE ADJACENT SAID CLOSED END, VALVE MEANS WITHIN SAID TUBE ADJACENT SAID FLUID ENTRANCE HOLE, SAID VALVE MEANS BEING OPERABLE BETWEEN A POSITION IN WHICH THE VALVE MEANS EXTENDS COMPLETELY ACROSS AND CLOSES SAID HOLD TO PREVENT ENTRANCE OF FLUID INTO SAID TUBE AND A POSITION IN WHICH THE FLUID ENTRANCE HOLE IS UNCOVERED TO PERMIT FLUID TO ENTER THE TUBE, AND
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |