Patent US2592968A successfully refreshed from Google Patents.
US2592968A
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US
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Flight training apparatus
Assignee: JESSIE C SOULE
•
Filing: 1946-11-15
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Granted: 1952-04-15
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Expires: 1966-11-15
Abstract
No abstract record available.
Inventors
- 👤 Charles W Soule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:05
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE305077C
Cited
GB246207A
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US2341678A
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US1858554A
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US1972941A
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US1953954A
Cited
US2298840A
Cited
US2255162A
Cited
GB549941A
Cited
US2331303A
Cited
US2385095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |