Patent US3487784A successfully refreshed from Google Patents.
US3487784A
Expired / Lapsed
US
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Pumps capable of use as heart pumps
Assignee: Individual
•
Filing: 1967-10-26
•
Granted: 1970-01-06
•
Expires: 1987-10-26
Abstract
No abstract record available.
Inventors
- 👤 Edson Howard Rafferty
- 👤 Harold D Kletschka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:06
CPC Classifications
F; F04; F04D; F04D5/00; F04D5/001; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/117; A61M60/122; A61M60/165; A61M60/196; A61M60/20; A61M60/205; A61M60/216; A61M60/226; A61M60/232; A61M60/40; A61M60/403; A61M60/408; A61M60/411; A61M60/416; A61M60/80; A61M60/802; A61M60/804; A61M60/806; A61M60/81; A61M60/814; A61M60/816; A61M60/818; A61M60/825; A61M60/827; A61M60/855; A61M60/871; A61M60/876; F04D1/00; F04D1/06; A61M60/126; A61M60/148; A61M60/422; F05; F05B; F05B2200/00; F05B2200/10; F05B2200/15; Y; Y10; Y10S; Y10S415/00; Y10S415/90
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |