US2778332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for locating crashed airplanes
Assignee: Individual
•
Filing: 1954-03-15
•
Granted: 1957-01-22
•
Expires: 1974-03-15
Abstract
No abstract record available.
Inventors
- 👤 Talbot Thomas William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:49
CPC Classifications
B; B64; B64D; B64D25/00; B64D25/08; B64D25/20; F; F42; F42B; F42B10/00; F42B10/32; F42B10/48; F42B12/00; F42B12/02; F42B12/36; F42B12/40; G; G01; G01S; G01S13/00; G01S13/74; G01S13/75; H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/081; H01Q1/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1836495A
Cited
US2013924A
Cited
US2176770A
Cited
US2236872A
Cited
US2192450A
Cited
US2380587A
Cited
US2396960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |