US2817490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine bucket with internal fins
Assignee: Motors Liquidation Co
•
Filing: 1951-10-10
•
Granted: 1957-12-24
•
Expires: 1971-10-10
Abstract
No abstract record available.
Inventors
- 👤 Wilgus S Broffitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:40
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/188; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US385384A
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US822801A
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US2063706A
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GB602530A
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CH267499A
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GB625693A
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US2613910A
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GB653267A
Cited
US2641040A
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US2568726A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |