US3425064A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transducer for artificial heart
Assignee: Parametrics Inc
•
Filing: 1966-05-09
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Granted: 1969-02-04
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Expires: 1986-05-09
Abstract
No abstract record available.
Inventors
- 👤 Edmund H Carnevale
- 👤 Lawrence C Lynnworth
- 👤 Ronald N Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
A; A61; A61M; A61M31/00; A61M60/00; A61M60/10; A61M60/122; A61M60/196; A61M60/40; A61M60/424; A61M60/427; A61M60/50; A61M60/508; A61M60/515; A61M60/523; A61M60/80; A61M60/855; A61M60/89; A61M60/898; A61M2205/00; A61M2205/33; A61M2205/3303; A61M2205/3331; A61M2205/3334; A61M60/126; A61M60/148; A61M60/20; A61M60/247; A61M60/253; A61M60/268
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) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |