Patent US2623502A successfully refreshed from Google Patents.
US2623502A
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Aircraft control system with fluid operated holding device
Assignee: Fairey Aviation Co Ltd
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Filing: 1948-06-08
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Granted: 1952-12-30
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Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Lisle William George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:22
CPC Classifications
B; B64; B64C; B64C13/00; Y; Y02; Y02T; Y02T50/00; Y02T50/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US250103A
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US505764A
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US2503956A
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US852445A
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FR710182A
Cited
US2200562A
Cited
US2365247A
Cited
US2523696A
Cited
US2441264A
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US2488173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |