US3484847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thrust spoiling and silencing in a gas turbine engine
Assignee: Rolls Royce PLC
•
Filing: 1967-12-11
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Granted: 1969-12-16
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Expires: 1987-12-11
Abstract
No abstract record available.
Inventors
- 👤 Horace Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/74; F02K1/06; F02K1/09; F02K1/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2931171A
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US2940252A
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US2997845A
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US3133412A
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US3036431A
Cited
US3024601A
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US3096617A
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US3344882A
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US3280562A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |