Patent US2866618A successfully refreshed from Google Patents.
US2866618A
Expired / Lapsed
US
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Reverse flow air cooled turbine blade
Assignee: Individual
•
Filing: 1953-02-13
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Granted: 1958-12-30
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Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:51
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB319622A
Cited
FR711419A
Cited
US2236426A
Cited
FR897709A
Cited
US2447095A
Cited
US2701120A
Cited
GB619634A
Cited
GB651787A
Cited
US2647368A
Cited
US2679669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |