Patent US2501633A successfully refreshed from Google Patents.
US2501633A
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Gas turbine aircraft power plant having ducted propulsive compressor means
Assignee: Lockheed Martin Corp
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Filing: 1943-06-28
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Granted: 1950-03-21
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Expires: 1963-06-28
Abstract
No abstract record available.
Inventors
- 👤 Nathan C Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:02
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/04; F02C3/107; F02C3/113; F02K; F02K3/00; F02K3/02; F02K3/04
Claims Analysis
Total Claims: 0
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FR844442A
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US2396911A
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US2356557A
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US2397998A
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US2360130A
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US2404767A
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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) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |