Patent US2584113A successfully refreshed from Google Patents.
US2584113A
Expired / Lapsed
US
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Educational apparatus for simulating the operation of aircraft
Assignee: AIRTOYS Inc
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Filing: 1950-03-06
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Granted: 1952-02-05
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Expires: 1970-03-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:11
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937241A
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US2179663A
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US2459150A
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US2332475A
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US2536474A
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US2326764A
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US2298305A
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US2409238A
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US2428706A
Cited
US2526371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |