US2771744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection means of combustion equipment for gas turbine engines
Assignee: ROLLS ROYEE Ltd
•
Filing: 1953-04-27
•
Granted: 1956-11-27
•
Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Johnson Francis Murray
- 👤 Carlisle Denis Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:58
CPC Classifications
F; F23; F23D; F23D11/00; F23D11/10; F23D11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1451063A
Cited
GB114069A
Cited
US1462395A
Cited
US2617252A
Cited
US2532711A
Cited
US2595759A
Cited
US2551276A
Cited
US2602292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |