US2722800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel systems for gas turbine engines or the like with main and pilot fuel injectors
Assignee: Rolls Royce PLC
•
Filing: 1950-02-13
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Granted: 1955-11-08
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Expires: 1970-02-13
Abstract
No abstract record available.
Inventors
- 👤 Jubb Albert
- 👤 Ivens William Ralph Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:54
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F02K1/16; F02K1/17; F02K3/00; F02K3/08; F02K3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2165555A
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GB572724A
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US2418867A
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FR919004A
Cited
GB612414A
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US2520961A
Cited
US2528134A
Cited
US2592110A
Cited
US2538642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |