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US2647368A
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Method and apparatus for internally cooling gas turbine blades with air, fuel, and water
Assignee: Individual
•
Filing: 1950-05-08
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Granted: 1953-08-04
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Expires: 1970-05-08
Abstract
No abstract record available.
Inventors
- 👤 Triebbnigg Heinrich
- 👤 David Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:46
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1824893A
Cited
USRE23172E
Cited
US2438998A
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US2468461A
Cited
US2575682A
Cited
GB602530A
Cited
US2559131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |