US2504041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump unit
Assignee: Acrotorque Co
•
Filing: 1946-11-19
•
Granted: 1950-04-11
•
Expires: 1966-11-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Elias Orshansky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:01
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B53/148; F04B1/00; F04B1/04; F04B1/0404; F04B1/0426; F04B1/053; F04B1/0531; F04B1/06; F04B1/07; F04B49/00; F04B49/12; F04B49/123; F04B49/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2048524A
Cited
US2237505A
Cited
US2252939A
Cited
US2256324A
Cited
US2328581A
Cited
US2348958A
Cited
US2471117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |