US2748712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump
Assignee: SARGENT RODLESS PUMP Co
•
Filing: 1947-08-23
•
Granted: 1956-06-05
•
Expires: 1967-08-23
Abstract
No abstract record available.
Inventors
- 👤 Edward J Sargent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:19
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/06; F04B47/08; F04B47/02; F04B47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US68721A
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US212109A
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US1834219A
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US2005995A
Cited
US2121927A
Cited
US2132084A
Cited
US2191369A
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US2331151A
Cited
US2255395A
Cited
GB589388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |