US2952017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide type radar apparatus having polarization converter
Assignee: Decca Record Co Ltd
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Filing: 1957-06-17
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Granted: 1960-09-06
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Expires: 1977-06-17
Abstract
No abstract record available.
Inventors
- 👤 Easy Maurice Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:46
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/165; H01P1/17; H01P1/172; G; G01; G01S; G01S1/00; G01S1/02; G01S13/00; G01S13/88; G01S13/95; G01S7/00; G01S7/02; G01S7/024; G01S7/025; H01P1/16; H01P1/161; Y; Y02; Y02A; Y02A90/00; Y02A90/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2364371A
Cited
US2531455A
Cited
US2438119A
Cited
FR1086790A
Cited
FR1099996A
Cited
US2774946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |