Patent US3069848A successfully refreshed from Google Patents.
US3069848A
Expired / Lapsed
US
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Jet lift gas turbine engines having thrust augmenting and silencing means
Assignee: Rolls Royce PLC
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Filing: 1960-01-11
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Granted: 1962-12-25
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Expires: 1980-01-11
Abstract
No abstract record available.
Inventors
- 👤 Griffith Alan Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:55
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735612A
Cited
US2610465A
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US2577919A
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FR972222A
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FR972223A
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US2672726A
Cited
US2873576A
Cited
US2652216A
Cited
FR1086315A
Cited
US2936973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |