Patent US2946221A successfully refreshed from Google Patents.
US2946221A
Expired / Lapsed
US
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Stator blade mounting of condition sensing elements in fluid flow machines
Assignee: Power Jets Research and Development Ltd
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Filing: 1954-07-09
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Granted: 1960-07-26
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Expires: 1974-07-09
Abstract
No abstract record available.
Inventors
- 👤 Annear John Douglas
- 👤 White Harry
- 👤 Holt Samuel Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:34
CPC Classifications
F; F01; F01D; F01D21/00; F01D21/003; F01D17/00; F01D17/02; F01D17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1885933A
Cited
US2057645A
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US2179500A
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US2411484A
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US2688844A
Cited
US2709979A
Cited
US2741919A
Cited
US2756596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |