US2772637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller pump
Assignee: Jabsco Pump Co
•
Filing: 1952-03-20
•
Granted: 1956-12-04
•
Expires: 1972-03-20
Abstract
No abstract record available.
Inventors
- 👤 Doble Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:58
CPC Classifications
F; F04; F04C; F04C5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2258371A
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US2189356A
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US2599600A
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US2649706A
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US2684035A
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US2499163A
Cited
US2636478A
Cited
US2664050A
Cited
US2648287A
Cited
US2663263A
Cited
US2636479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |