Patent US2951298A successfully refreshed from Google Patents.
US2951298A
Expired / Lapsed
US
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Propeller simulating system for aircraft trainers
Assignee: Curtiss Wright Corp
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Filing: 1957-07-18
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Granted: 1960-09-06
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Expires: 1977-07-18
Abstract
No abstract record available.
Inventors
- 👤 Roscoe H Goodwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:31
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/16; G09B9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2400579A
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US2400580A
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US2584261A
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US2593484A
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US2696269A
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US2788589A
Cited
US2694170A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |