Patent US2787842A successfully refreshed from Google Patents.
US2787842A
Expired / Lapsed
US
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Rough air simulating means for grounded aviation trainers
Assignee: Link Aviation Inc
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Filing: 1951-12-07
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Granted: 1957-04-09
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Expires: 1971-12-07
Abstract
No abstract record available.
Inventors
- 👤 Robert L Smith
- 👤 Raymond E Kittredge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/16; G09B9/20; G09B9/206
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1789680A
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US1895737A
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US2442297A
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US2422552A
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US2485291A
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US2510500A
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US2510578A
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US2524238A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |