US2631426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine starting turbine having combustion element supplied thereto in response to speed and combustion chamber pressure
Assignee: Curtiss Wright Corp
•
Filing: 1948-07-07
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Granted: 1953-03-17
•
Expires: 1968-07-07
Abstract
No abstract record available.
Inventors
- 👤 Charles S Jewett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:31
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/268; F02C7/275; F02C7/277
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US929503A
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US1052588A
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US1154609A
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US2093008A
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US2154572A
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US2206723A
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US2325618A
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US2351750A
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US2398201A
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US2382564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |