Patent US3101474A successfully refreshed from Google Patents.
US3101474A
Expired / Lapsed
US
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Log periodic type antenna mounted on ground plane and fed by tapered feed
Assignee: GTE Sylvania Inc
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Filing: 1960-11-25
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Granted: 1963-08-20
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Arthur F Wickersham
- 👤 Ross L Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:54
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/10
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A BROADBAND ANTENNA COMPRISING A PLANAR CONDUCTING SURFACE, A PLURALITY OF PARALLEL SPACED CONDUCTING ELEMENTS ARRANGED IN A ROW IN A FIRST PLANE EXTENDING NORMAL TO SAID SURFACE, SAID ELEMENTS BEING ELECTRICALLY CONNECTED TO SAID SURFACE, THE LINEAR DIMENSIONS AND SPACINGS OF SAID ELEMENTS INCREASING IN A DIRECTION FROM ONE END OF THE ROW TO THE OTHER END, AND A COAXIAL LINE HAVING AN OUTER CONDUCTOR AND AN INNER CONDUCTOR, SAID OUTER CONDUCTOR BEING ELECTRICALLY CONNECTED TO SAID SURFACE, SAID
References Cited (Backward Citations)
US2981951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |