US3677800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-thrombogenic coatings and products
Assignee: General Electric Co
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Filing: 1970-03-18
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Granted: 1972-07-18
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Expires: 1990-03-18
Abstract
Abstract A THIN, CONTINUOUS ADHERENT COATING IS FORMED ON A SUBSTRATE BY ULTRAVIOLET SURFACE PHOTOPOLYMERIZATION OF SODIUM HEPARIN IN THE GASEOUS PHASE. THE RESULTING COATED ARTICLE EXHIBITS ANTI-THROMBOGENIC BEHAVIOR AND IS SUITABLE FOR PROSTHETIC USE.
Inventors
- 👤 Archibald N Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:44
CPC Classifications
A; A61; A61L; A61L33/00; A61L33/0005; A61L33/0011; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678; Y10T428/31786
Claims Analysis
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |