US3094762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrafluoroethylene resin tubing
Assignee: United States Catheter and Instrument Corp
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Filing: 1959-01-07
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Granted: 1963-06-25
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Expires: 1979-01-07
Abstract
No abstract record available.
Inventors
- 👤 Jeckel Norman Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:18
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L; A61L27/00; A61L27/14; A61L27/16; Y; Y10; Y10S; Y10S128/00; Y10S128/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PROCESS FOR REDUCING THE POROSITY OF A KNITTED TETRAFLUOROETHYLENE BLOOD VESSEL PROSTHESIS HAVING A TUBULAR SHAPE WITH A SUBSTANTIALLY CIRCULAR CROSS-SECTION COMPRISING HEATING SAID PROSTHESIS AT A TEMPERATURE RANGE BETWEEN 350*F. AND IMMEDIATELY BELOW THE FUSION POINT OF TETRAFLUOROETHYLENE.
Claim 2
Dependent Claim
40 words
A PROCESS FOR REDUCING THE POROSITY OF A KNITTED TETRAFLUOROETHYLENE BLOOD VESSEL PROSTHESIS HAVING A TUBULAR SHAPE WITH A SUBSTANTIALLY CIRCULAR CROSS-SECTION COMPRISING HEATING SAID PROSTHESIS AT A TEMPERATURE RANGE BETWEEN 350*F. AND IMMEDIATELY BELOW THE FUSION POINT OF TETRAFLUOROETHYLENE.
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |