US2619183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft propeller control system
Assignee: Curtiss Wright Corp
•
Filing: 1945-05-12
•
Granted: 1952-11-25
•
Expires: 1965-05-12
Abstract
No abstract record available.
Inventors
- 👤 Charles W Chillson
- 👤 Joseph R Schoenbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:42
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0615; G05D1/063; F; F02; F02D; F02D29/00; F02D2700/00; F02D2700/07
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1703280A
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US1988458A
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US2251973A
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US2175009A
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US2270414A
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US2351079A
Cited
US2408451A
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US2346856A
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US2382847A
Cited
US2375429A
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US2399685A
Cited
US2390084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |