Patent US2923004A successfully refreshed from Google Patents.
US2923004A
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US
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Electromagnetic frequency modulated detection systems
Assignee: Thales SA
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Filing: 1953-12-07
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Granted: 1960-01-26
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Expires: 1973-12-07
Abstract
No abstract record available.
Inventors
- 👤 Warnecke Robert
- 👤 Dohler Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:50
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/36; G01S1/00; G01S1/02; G01S13/34; G01S13/343; G01S13/347; G01S7/00; G01S7/02; G01S7/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |