Patent US2774566A successfully refreshed from Google Patents.
US2774566A
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US
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Fluid cooled permeable turbine blade
Assignee: Individual
•
Filing: 1947-12-12
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Granted: 1956-12-18
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Expires: 1967-12-12
Abstract
No abstract record available.
Inventors
- 👤 Richardson Edward Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:26
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/182; Y; Y10; Y10S; Y10S415/00; Y10S415/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2149510A
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US2183313A
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US2304259A
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US2354151A
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US2489683A
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US2401797A
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US2440069A
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US2501038A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |