Patent US2667634A successfully refreshed from Google Patents.
US2667634A
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US
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Moving target indication apparatus
Assignee: EMI Ltd
•
Filing: 1948-11-10
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Granted: 1954-01-26
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Expires: 1968-11-10
Abstract
No abstract record available.
Inventors
- 👤 Hart Geoffrey Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:12
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/538
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2492012A
Cited
US2412669A
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US2406751A
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US2440301A
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US2437173A
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US2526682A
Cited
US2522528A
Cited
GB614595A
Cited
US2586772A
Cited
GB632689A
Cited
US2597636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |