US2986098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible chamber liquid pump
Assignee: Cardiovascular Res Foundation
•
Filing: 1959-10-23
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Granted: 1961-05-30
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Expires: 1979-10-23
Abstract
No abstract record available.
Inventors
- 👤 Robert G Trout
- 👤 Jr Robert P Dobbie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:42
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/1057; A; A61; A61M; A61M60/00; A61M60/10; A61M60/104; A61M60/80; A61M60/835; A61M60/837; A61M60/845; A61M60/851; A61M60/855; A61M60/89; A61M60/894; A61M60/896; F04B43/00; F04B43/08; F04B43/084; A61M60/892; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882; Y10T137/7886
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) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |