US2651492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine
Assignee: Power Jets Research and Development Ltd
•
Filing: 1947-03-14
•
Granted: 1953-09-08
•
Expires: 1967-03-14
Abstract
No abstract record available.
Inventors
- 👤 Feilden Geoffrey Bertra Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:16
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; F01D17/20; F01D17/22; F01D17/26; F02; F02C; F02C9/00; F02C9/16; F02C9/20; F02C9/22; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021226A
Cited
US1842957A
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US1928504A
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US2100489A
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US2219994A
Cited
US2312605A
Cited
US2337861A
Cited
US2351328A
Cited
US2428830A
Cited
US2472062A
Cited
US2460778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |