US2997845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Jet propulsion nozzle adjustable to give forward and reverse thrusts
Assignee: Rolls Royce PLC
•
Filing: 1958-03-19
•
Granted: 1961-08-29
•
Expires: 1978-03-19
Abstract
No abstract record available.
Inventors
- 👤 Oulianoff George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:38
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/46; F02K1/48; F02K1/38; F02K1/383; F02K1/54; F02K1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2838909A
Cited
GB733931A
Cited
GB739500A
Cited
US2847822A
Cited
US2940252A
Cited
US2841956A
Cited
US2848867A
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 |