US3540216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-flow gas turbine jet engine
Assignee: Safran Aircraft Engines SAS
•
Filing: 1968-01-22
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Granted: 1970-11-17
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Herve Alain Quillevere
- 👤 Armand Jean-Baptiste Lacroix
- 👤 Ratko Stakic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:40
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18; F23R3/20; F02; F02K; F02K1/00; F02K1/38; F02K1/386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3269114A
Cited
US2588532A
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US2832402A
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US2744384A
Cited
FR1086315A
Cited
US2944399A
Cited
US3056261A
Cited
US2978868A
Cited
US3295325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |