Patent US2925047A successfully refreshed from Google Patents.
US2925047A
Expired / Lapsed
US
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Rotary hydraulic pump
Assignee: GENERAL METALS CORP
•
Filing: 1953-03-23
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Granted: 1960-02-16
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Expires: 1973-03-23
Abstract
No abstract record available.
Inventors
- 👤 James F Hoffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:06
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/102; F01; F01B; F01B3/00; F01B3/04; F01B3/045; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/128; F04B1/14; F04B1/16; F04B1/18; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106; F04B23/14; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18024; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/18312; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1367914A
Cited
GB198386A
Cited
FR548233A
Cited
US1603853A
Cited
US1939128A
Cited
US1776786A
Cited
US1913730A
Cited
DE647891C
Cited
GB468122A
Cited
GB484142A
Cited
US2192539A
Cited
US2215700A
Cited
US2222203A
Cited
US2278696A
Cited
US2386675A
Cited
US2430753A
Cited
GB610428A
Cited
US2594641A
Cited
GB646371A
Cited
US2545609A
Cited
US2682226A
Cited
GB726649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |