US2760338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annular combustion chamber for gas turbine engine
Assignee: AV Roe Canada Ltd
•
Filing: 1953-01-29
•
Granted: 1956-08-28
•
Expires: 1973-01-29
Abstract
No abstract record available.
Inventors
- 👤 Keast Francis Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:08
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2477683A
Cited
US2618120A
Cited
US2676459A
Cited
US2640319A
Cited
US2674090A
Cited
US2699040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |