Patent US2836181A successfully refreshed from Google Patents.
US2836181A
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Flexible nylon tube and method for preparing same
Assignee: Solutia Inc
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Filing: 1955-01-17
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Granted: 1958-05-27
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Expires: 1975-01-17
Abstract
No abstract record available.
Inventors
- 👤 James S Tapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:49
CPC Classifications
B; B29; B29C; B29C53/00; B29C53/22; B29C53/30; A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L; A61L27/00; A61L27/14; A61L27/18; Y; Y10; Y10S; Y10S264/00; Y10S264/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A FLEXIBLE DEVICE FOR BLOOD VESSEL REPLACEMENT NOT SUBJECT TO KINKING OR COLLAPSE WHICH COMPRISES A BRAIDED NYLON TUBE STIFFENED BY TREATMENT WITH A CONCENTRATED FORMIC ACID SOLUTION, HAVING A REGULAR, CIRCULAR CRIMP MECHANICALLY INDUCED AND RENDERED PERMANENT BY HEAT TREATMENT, AND HAVING THE SAID CRIMP RELAXED BY A TREATMENT IN HOT WATER AND DRIED.
Claim 2
Dependent Claim
55 words
A FLEXIBLE DEVICE FOR BLOOD VESSEL REPLACEMENT NOT SUBJECT TO KINKING OR COLLAPSE WHICH COMPRISES A BRAIDED NYLON TUBE STIFFENED BY TREATMENT WITH A CONCENTRATED FORMIC ACID SOLUTION, HAVING A REGULAR, CIRCULAR CRIMP MECHANICALLY INDUCED AND RENDERED PERMANENT BY HEAT TREATMENT, AND HAVING THE SAID CRIMP RELAXED BY A TREATMENT IN HOT WATER AND DRIED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |