Patent US2487588A successfully refreshed from Google Patents.
US2487588A
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Variable area propulsive nozzle means for power plants
Assignee: Lockheed Martin Corp
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Filing: 1945-03-10
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Granted: 1949-11-08
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Expires: 1965-03-10
Abstract
No abstract record available.
Inventors
- 👤 Nathan C Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:21
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/36; F01; F01D; F01D25/00; F01D25/24; F01D5/00; F01D5/02; F01D5/08; F01D5/085; F01D5/12; F01D5/14; F01D5/18; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F02C; F02C3/00; F02C3/04; F02C3/06; F02K1/06; F02K1/08; F02K1/09; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE310926C
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US607548A
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DE483888C
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US658586A
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US1555030A
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US1422582A
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US1493157A
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US2356557A
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US2346178A
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US2390161A
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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) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |