US2682048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio object detection apparatus
Assignee: United States, WAR, Secretary of
•
Filing: 1945-04-07
•
Granted: 1954-06-22
•
Expires: 1965-04-07
Abstract
No abstract record available.
Inventors
- 👤 Longacre Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:44
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/007; G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/2813
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2112282A
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US2227598A
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US2541030A
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US2480829A
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US2442695A
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US2455265A
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US2534329A
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US2479586A
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US2532566A
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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) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |