US2677273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine, compressor, or like rotary machine having a pivoted indicator blade responsive to operating conditions
Assignee: Power Jets Research and Development Ltd
•
Filing: 1948-12-27
•
Granted: 1954-05-04
•
Expires: 1968-12-27
Abstract
No abstract record available.
Inventors
- 👤 Johnson William Evelyn Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:16
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/02; F01D17/08; F01D17/04; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; F01D21/00; F01D21/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1401668A
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US2014684A
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US2311684A
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US2378958A
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US2388208A
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US2409837A
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US2460778A
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US2477954A
Cited
US2473382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |