Patent US2293692A successfully refreshed from Google Patents.
US2293692A
Expired / Lapsed
US
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Variable stroke radial pump
Assignee: AIRCRAFT HYDRAULIC APPLIANCES
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Filing: 1939-10-13
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Granted: 1942-08-18
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Expires: 1959-10-13
Abstract
No abstract record available.
Inventors
- 👤 Wylie Hamilton Neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:39
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0439; F04B1/06; F04B1/07; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F04B23/14; F04B49/00; F04B49/12; F04B49/123; F04B49/128; F04B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-08-17 | 1946-02-16 | 1946-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-17 | 1950-02-16 | 1950-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-17 | 1954-02-16 | 1954-08-18 | $7700.00 | Window Closed / Lapsed |