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US2646561A
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Moving object pulse echo selection circuit for radar systems
Assignee: United States, WAR, Secretary of
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Filing: 1946-04-30
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Granted: 1953-07-21
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Expires: 1966-04-30
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Emslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:54
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524; G01S13/526
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2054676A
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US2209064A
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US2406316A
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US2408742A
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US2419541A
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US2532546A
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US2514924A
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US2523283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |