US2803429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction of gas turbine plant
Assignee: Power Jets Research and Development Ltd
•
Filing: 1951-03-19
•
Granted: 1957-08-20
•
Expires: 1971-03-19
Abstract
No abstract record available.
Inventors
- 👤 Whitehead Leslie Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:34
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/28; F01D25/285; F01D5/00; F01D5/12; F01D5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1522190A
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GB369680A
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US2220616A
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US2266577A
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FR882330A
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US2479038A
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US2505217A
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US2591399A
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US2616662A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |