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US2726388A
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Antenna system combinations and arrays
Assignee: TDK Micronas GmbH
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Filing: 1951-07-26
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Granted: 1955-12-06
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Expires: 1971-07-26
Abstract
No abstract record available.
Inventors
- 👤 Kandoian Armig Ghevont
- 👤 Robert A Felsenheld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:33
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2218741A
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US2199375A
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US2323641A
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US2540839A
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US2385783A
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US2452202A
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US2471021A
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US2519209A
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US2462865A
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US2533236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |