US3437450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hyperbaric heart pump oxygenator with hypothermia
Assignee: JAMES M GREENWOOD
•
Filing: 1965-01-04
•
Granted: 1969-04-08
•
Expires: 1985-01-04
Abstract
No abstract record available.
Inventors
- 👤 James M Greenwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:33
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/14; A61M1/32; A61M2205/00; A61M2205/33; A61M2205/3379; A61M2205/3386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB715612A
Cited
US2652831A
Cited
US2876769A
Cited
US3026871A
Cited
US3074401A
Cited
US3183908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |