US3367364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic heart valve
Assignee: University of Minnesota Twin Cities
•
Filing: 1964-10-19
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Granted: 1968-02-06
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Anatolio B Cruz
- 👤 Robert L Kaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:20
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/02; A61F2/24; A61F2/2403; A61F2/2406; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7898; Y10T137/7903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1674235A
Cited
US2603452A
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US2754844A
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US2949931A
Cited
US3099016A
Cited
US3130419A
Cited
US3113586A
Cited
US3263239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |