US2731737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft training apparatus for simulating landing and related maneuvers
Assignee: Curtiss Wright Corp
•
Filing: 1949-12-23
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Granted: 1956-01-24
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Expires: 1969-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert G Stern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:11
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/16; G09B9/20; G09B9/203; G09B19/00; G09B19/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1825462A
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US2099857A
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US2584261A
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US2471966A
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US2485499A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-23 | 1959-07-25 | 1960-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-23 | 1963-07-25 | 1964-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-23 | 1967-07-25 | 1968-01-24 | $7700.00 | Window Closed / Lapsed |