Patent US2636285A successfully refreshed from Google Patents.
US2636285A
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US
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Aircraft pilot trainer
Assignee: AT&T Inc
•
Filing: 1945-10-12
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Granted: 1953-04-28
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Expires: 1965-10-12
Abstract
No abstract record available.
Inventors
- 👤 Edward J Fogarty
- 👤 Robert O Rippere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:27
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/16; G09B9/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2153986A
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US2282442A
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US2394180A
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US2397477A
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US2408081A
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US2366603A
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US2372741A
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US2346838A
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US2428767A
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US2443604A
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US2395477A
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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) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |