US2926489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable propulsion nozzles
Assignee: Bristol Siddeley Engines Ltd
•
Filing: 1955-05-13
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Granted: 1960-03-01
•
Expires: 1975-05-13
Abstract
No abstract record available.
Inventors
- 👤 Bentley Alfred Hardy
- 👤 Bulman George Purvis
- 👤 Bentley John Hardy
- 👤 Owner Frank Morgan
- 👤 Clarke George Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:21
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/1207
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2637164A
Cited
US2697907A
Cited
FR998358A
Cited
US2770944A
Cited
US2651172A
Cited
US2806349A
Cited
US2726509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |