Patent US3392722A successfully refreshed from Google Patents.
US3490975A
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Method of making an artificial artery of wound silicone rubber thread
Assignee: ZF International UK Ltd
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Filing: 1966-10-10
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Granted: 1970-01-20
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Expires: 1986-10-10
Abstract
No abstract record available.
Inventors
- 👤 Raymond Lightwood
- 👤 Alistair Sutherland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:55
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/04; A61F2/06; A61L; A61L27/00; A61L27/14; A61L27/18; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/583; B29C53/587; B29C37/00; B29C37/0003; B29C37/0017; B29K; B29K2083/00; B29K2105/00; B29K2105/04; B29L; B29L2031/00; B29L2031/753; B29L2031/7532; B29L2031/7534; Y; Y10; Y10S; Y10S623/00; Y10S623/901; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002
Claims Analysis
Total Claims: 0
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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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |