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US2998209A
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Multi-purpose, jet propelled aircraft
Assignee: English Electric Co Ltd
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Filing: 1959-09-25
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Granted: 1961-08-29
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Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 Creasey Raymond Frederick
- 👤 Heath Bernard Oliver
- 👤 Sharples Geoffrey Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:26
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/0009; B64C2211/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2744698A
Cited
US2731216A
Cited
US2726671A
Cited
US2920842A
Cited
US2941751A
Cited
US2944764A
Cited
US2944765A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |