Patent US2329612A successfully refreshed from Google Patents.
US2329612A
Expired / Lapsed
US
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Apparatus for training aircraft pilots
Assignee: Individual
•
Filing: 1942-05-01
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Granted: 1943-09-14
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Expires: 1962-05-01
Abstract
No abstract record available.
Inventors
- 👤 Hill George Edmund
- 👤 Goldsmith Sydney Mansfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:52
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-09-13 | 1947-03-15 | 1947-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-13 | 1951-03-15 | 1951-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-13 | 1955-03-15 | 1955-09-14 | $7700.00 | Window Closed / Lapsed |