US3067982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous wall turbine blades and method of manufacture
Assignee: California Institute Research Foundation
•
Filing: 1958-08-25
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Granted: 1962-12-11
•
Expires: 1978-08-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry L Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:50
CPC Classifications
B; B23; B23P; B23P15/00; B23P15/04; F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/182; F01D5/183; Y; Y10; Y10S; Y10S415/00; Y10S415/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1829179A
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US2189785A
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US2577336A
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US2489683A
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US2648520A
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US2843355A
Cited
US2665831A
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US2699598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |