Patent US2520737A successfully refreshed from Google Patents.
Patent US3457909A successfully refreshed from Google Patents.
US3457909A
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US
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Heart augmentation system provided with means for measuring intra-arterial pressure
Assignee: KONTROL CARDIOVASCULAR Inc
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Filing: 1966-07-20
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Granted: 1969-07-29
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Expires: 1986-07-20
Abstract
No abstract record available.
Inventors
- 👤 John D Laird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/021; A61B5/0215; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/148; A61M60/40; A61M60/424; A61M60/427; A61M60/50; A61M60/508; A61M60/515; A61M60/531; A61M60/538; A61M60/554; A61M60/80; A61M60/855; A61M60/871; A61M60/88; A61M60/89; A61M60/892; A61M60/20; A61M60/247; A61M60/253; A61M60/268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3099260A
Cited
US3266487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |