US2749023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engines
Assignee: Bristol Aeroplane Co Ltd
•
Filing: 1953-02-09
•
Granted: 1956-06-05
•
Expires: 1973-02-09
Abstract
No abstract record available.
Inventors
- 👤 Lewis Gordon Manns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:56
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/27
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1165794A
Cited
FR685830A
Cited
US1926225A
Cited
US2473356A
Cited
US2411552A
Cited
US2447292A
Cited
GB616695A
Cited
US2613501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |