Patent US2807435A successfully refreshed from Google Patents.
US2807435A
Expired / Lapsed
US
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Turbine stator blade
Assignee: Fairchild Engine and Airplane Corp
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Filing: 1951-06-12
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Granted: 1957-09-24
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Expires: 1971-06-12
Abstract
No abstract record available.
Inventors
- 👤 John W Howlett
- 👤 Dew Sidney Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:27
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49323
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR500425A
Cited
US2000692A
Cited
US2019329A
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US2090468A
Cited
US2285811A
Cited
US2396730A
Cited
US2382273A
Cited
US2620530A
Cited
US2510735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |