US2737252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine propeller control system
Assignee: Curtiss Wright Corp
•
Filing: 1950-06-01
•
Granted: 1956-03-06
•
Expires: 1970-06-01
Abstract
No abstract record available.
Inventors
- 👤 George P Knapp
- 👤 Meyer Marvin
- 👤 William P Robbins
- 👤 Raymond T Zwack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:41
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/48; F02C9/56; F02C9/58; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2095991A
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US2306953A
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US2322303A
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US2303998A
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US2402065A
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US2618927A
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US2457595A
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US2575229A
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US2545703A
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US2498939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |