US3478695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsatile heart pump
Assignee: McDonnell Douglas Corp
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Filing: 1968-02-13
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Granted: 1969-11-18
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Expires: 1988-02-13
Abstract
No abstract record available.
Inventors
- 👤 Richard B Goranson
- 👤 William R Martini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:08
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/08; F04B43/086; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/117; A61M60/122; A61M60/126; A61M60/148; A61M60/165; A61M60/178; A61M60/183; A61M60/196; A61M60/20; A61M60/247; A61M60/253; A61M60/268; A61M60/40; A61M60/424; A61M60/427; A61M60/43; A61M60/80; A61M60/855; A61M60/869; A61M60/89; A61M60/894; A61M60/896
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) | 1972-11-17 | 1973-05-19 | 1973-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-17 | 1977-05-19 | 1977-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-17 | 1981-05-19 | 1981-11-18 | $7700.00 | Window Closed / Lapsed |