Patent US2859954A successfully refreshed from Google Patents.
US2859954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine plant for providing a continuous supply of hot compressed air
Assignee: Power Jets Research and Development Ltd
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Filing: 1952-05-26
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Granted: 1958-11-11
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Expires: 1972-05-26
Abstract
No abstract record available.
Inventors
- 👤 Grey John Constantine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:14
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/06; F02C6/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163762A
Cited
US2305785A
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US2223572A
Cited
US2315336A
Cited
US2282740A
Cited
US2489939A
Cited
CH247527A
Cited
US2632297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |