Patent US2925786A successfully refreshed from Google Patents.
US2925786A
Expired / Lapsed
US
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Pump
Assignee: Procon Pump & Engineering Co
•
Filing: 1956-11-23
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Granted: 1960-02-23
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Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Edward J Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:44
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/30; F04C2/34; F04C2/344; F04C2/3441; F04C2/3442; Y; Y10; Y10S; Y10S417/00; Y10S417/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1737942A
Cited
GB294653A
Cited
US1855708A
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US1980404A
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US2439241A
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US2433360A
Cited
US2588430A
Cited
US2528210A
Cited
US2525619A
Cited
US2649737A
Cited
US2662483A
Cited
US2611323A
Cited
US2674953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-22 | 1963-08-24 | 1964-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-22 | 1967-08-24 | 1968-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-22 | 1971-08-24 | 1972-02-23 | $7700.00 | Window Closed / Lapsed |