US2846843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable area convergent-divergent exhaust nozzle and control therefor
Assignee: Curtiss Wright Corp
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Filing: 1953-01-07
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Granted: 1958-08-12
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Expires: 1973-01-07
Abstract
No abstract record available.
Inventors
- 👤 Donald B Clark
- 👤 George S Kelley
- 👤 Walter W Mahnken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:14
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/06; F02K1/15; F05; F05D; F05D2250/00; F05D2250/30; F05D2250/32; F05D2250/323; F05D2250/324
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2641324A
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US2563270A
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US2411895A
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US2566961A
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US2537772A
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US2623352A
Cited
US2570629A
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US2671620A
Cited
US2603062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |