US2982496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft
Assignee: English Electric Co Ltd
•
Filing: 1956-12-27
•
Granted: 1961-05-02
•
Expires: 1976-12-27
Abstract
No abstract record available.
Inventors
- 👤 Creasey Raymond Frederick
- 👤 Heath Bernard Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:37
CPC Classifications
B; B64; B64C; B64C30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1868832A
Cited
US2003206A
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US2271226A
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FR971992A
Cited
US2584961A
Cited
CH246882A
Cited
FR1001944A
Cited
US2684817A
Cited
US2681776A
Cited
US2693325A
Cited
US2700515A
Cited
US2723092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |