US2583173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar receiver
Assignee: Gilfillan Bros Inc
•
Filing: 1946-07-29
•
Granted: 1952-01-22
•
Expires: 1966-07-29
Abstract
No abstract record available.
Inventors
- 👤 Charles W Hargens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:12
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2167492A
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US2185612A
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US2433838A
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US2498381A
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US2449985A
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US2412703A
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US2410641A
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US2408078A
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US2407898A
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US2439656A
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US2429623A
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US2416895A
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US2422334A
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US2427523A
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US2444721A
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US2456952A
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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) | 1955-01-21 | 1955-07-23 | 1956-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-21 | 1959-07-23 | 1960-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-21 | 1963-07-23 | 1964-01-22 | $7700.00 | Window Closed / Lapsed |