US2692985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar indicator apparatus
Assignee: Unisys Corp
•
Filing: 1946-06-12
•
Granted: 1954-10-26
•
Expires: 1966-06-12
Abstract
No abstract record available.
Inventors
- 👤 James M Fetherolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:06
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G01S7/16; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422; H; H01; H01Q; H01Q3/00; H01Q3/02; H01Q3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189549A
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US2405238A
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US2444031A
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US2610320A
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US2446024A
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US2425330A
Cited
US2415981A
Cited
US2423518A
Cited
US2606318A
Cited
US2471264A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-25 | 1958-04-26 | 1958-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-25 | 1962-04-26 | 1962-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-25 | 1966-04-26 | 1966-10-26 | $7700.00 | Window Closed / Lapsed |