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US2641703A
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US
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Antenna structure
Assignee: AMERICAN PHENOLIC Corp
•
Filing: 1949-09-21
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Granted: 1953-06-09
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Expires: 1969-09-21
Abstract
No abstract record available.
Inventors
- 👤 Charles F Valach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:27
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/28; H01Q19/30; Y; Y10; Y10T; Y10T403/00; Y10T403/57; Y10T403/5741; Y10T403/71; Y10T403/7129
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2481801A
Cited
US2474480A
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US2471256A
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US2496646A
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US2489720A
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US2567577A
Cited
US2523531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |