US3440818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion and cooling air control in turbojet engines
Assignee: Safran Aircraft Engines SAS
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Filing: 1967-07-05
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Granted: 1969-04-29
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Expires: 1987-07-05
Abstract
No abstract record available.
Inventors
- 👤 Herve Alain Quillevere
- 👤 Jacques Emile Jules Caruel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:23
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/04; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2609040A
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US2958194A
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US2987873A
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US3030773A
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US3134229A
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US3184918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |