US2927582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-oxygenator
Assignee: Research Corp
•
Filing: 1956-03-19
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Granted: 1960-03-08
•
Expires: 1976-03-19
Abstract
No abstract record available.
Inventors
- 👤 John W Berkman
- 👤 Richard E Jones
- 👤 Paul D Senstad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:22
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/36; A61M1/3621; A61M1/14; A61M1/32; A61M1/322; A61M1/325; A61M1/71; A61M1/74; A61M1/742; A61M2205/00; A61M2205/33; A61M2205/3379; A61M2205/3386; Y; Y10; Y10S; Y10S128/00; Y10S128/03; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559
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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |