Patent US2520632A successfully refreshed from Google Patents.
US2520632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump or motor
Assignee: TORQ ELECTRIC Manufacturing Co
•
Filing: 1945-03-22
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Granted: 1950-08-29
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Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 Greenhut Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:56
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/10; F01B3/103; F01B3/106; F01B3/0032; F01B3/0035; F01B3/0044; F01B3/0052; F01B3/0055; F01B3/0058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1297734A
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US1714148A
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US1822064A
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US2129828A
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US2205913A
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US2237430A
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US2328717A
Cited
US2427224A
Cited
US2426588A
Cited
US2445281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |