US3363831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axial-flow compressor with two contra-rotating rotors
Assignee: Safran Aircraft Engines SAS
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Filing: 1966-06-23
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Granted: 1968-01-16
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Expires: 1986-06-23
Abstract
No abstract record available.
Inventors
- 👤 Garnier Michel Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:45
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/06; F02C3/067; F01; F01D; F01D5/00; F01D5/02; F01D5/022; F01D5/06; F01D5/063; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/072; F04; F04D; F04D19/00; F04D19/02; F04D19/024; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |