US2885856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for increasing compressor pressure ratios in a gas turbine engine
Assignee: Curtiss Wright Corp
•
Filing: 1956-03-23
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Granted: 1959-05-12
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Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 George H Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:44
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/148; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F02; F02C; F02C9/00; F02C9/16; F02C9/20; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR1030483A
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US2825532A
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US2722802A
Cited
US2759549A
Cited
FR1057271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |