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US2774554A
Expired / Lapsed
US
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Jet flow control for jet-sustained and jet-propelled aircraft
Assignee: Power Jets Research and Development Ltd
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Filing: 1953-05-25
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Granted: 1956-12-18
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Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 Ashwood Peter Frederick
- 👤 Crosse George William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:27
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0066; B64C29/0091; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87788; Y10T137/87796
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US684153A
Cited
US1425642A
Cited
US1388523A
Cited
US1714917A
Cited
US2024274A
Cited
US2657881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |