Patent US3392722A successfully refreshed from Google Patents.
US3392722A
Expired / Lapsed
US
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Post-operative surgical valve
Assignee: ROGER L JORGENSEN
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Filing: 1965-07-29
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Granted: 1968-07-16
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Expires: 1985-07-29
Abstract
No abstract record available.
Inventors
- 👤 Roger L Jorgensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:54
CPC Classifications
A; A61; A61M; A61M27/00; A61B; A61B90/00; A61F; A61F2/00; A61F2/02; A61F2/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA666090A
Cited
US1760750A
Cited
US1946138A
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US2587910A
Cited
US2618271A
Cited
US2828101A
Cited
US2889892A
Cited
US2919697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |