US2589853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft power plant having two or more gas turbine power units to drive one or more airscrews in various combinations
Assignee: Bristol Aeroplane Co Ltd
•
Filing: 1947-03-21
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Granted: 1952-03-18
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Expires: 1967-03-21
Abstract
No abstract record available.
Inventors
- 👤 Owner Frank Morgan
- 👤 Mansell Stanley Walter
- 👤 Marchant Francis Charles Ivor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:43
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/20; F02C6/206; B; B64; B64D; B64D35/00; B64D35/08; F02C6/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2288173A
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US2380889A
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US2476179A
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US2428457A
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US2464986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |