Patent US2992793A successfully refreshed from Google Patents.
US2992793A
Expired / Lapsed
US
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Aircraft provided with a device for hurling a location signal emitter in cases of accidents
Assignee: Individual
•
Filing: 1957-02-14
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Granted: 1961-07-18
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Expires: 1977-02-14
Abstract
No abstract record available.
Inventors
- 👤 Devantier Karl Edmund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:11
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/08; B64D25/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2470783A
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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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |