US2655649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object location relay system
Assignee: Individual
•
Filing: 1945-03-06
•
Granted: 1953-10-13
•
Expires: 1965-03-06
Abstract
No abstract record available.
Inventors
- 👤 Everard M Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:16
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/185; G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB358972A
Cited
US1945952A
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US2176469A
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US2252083A
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US2582971A
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US2301929A
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US2369268A
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US2412670A
Cited
US2448007A
Cited
US2431018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |