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US3474446A
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Cylindrical array antenna system with electronic scanning
Assignee: TDK Micronas GmbH
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Filing: 1968-02-26
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Granted: 1969-10-21
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Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Lowell Norman Shestag
- 👤 Thomas Kinaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:34
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/44; G01S1/46; G01S1/48; H01Q13/00; H01Q13/06; H01Q3/30; H01Q3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3394380A
Cited
US3370267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |