US3295137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shortened folded monopole with radiation efficiency increased by ferrite loading
Assignee: Collins Radio Co
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Filing: 1964-09-08
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Granted: 1966-12-27
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Richard C Fenwick
- 👤 Walter L Weeks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:23
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/09; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN ANTENNA STRUCTURE THAT CAN BE SUBSTANTIALLY SHORTENED WHILE MAINTAINING HIGH EFFICIENCY OF RADIATION COMPRISING A COAXIAL CONDUCTOR WITH THE OUTER CONDUCTOR CONNECTED TO A GROUND PLANE, AN INNER CONDUCTOR HAVING A DRIVEN AND GROUNDED SECTION COUPLED BY A COUPLING SECTION AND WITH THE GROUNDED SECTION CONNECTED TO THE
Claim 2
Dependent Claim
49 words
AN ANTENNA STRUCTURE THAT CAN BE SUBSTANTIALLY SHORTENED WHILE MAINTAINING HIGH EFFICIENCY OF RADIATION COMPRISING A COAXIAL CONDUCTOR WITH THE OUTER CONDUCTOR CONNECTED TO A GROUND PLANE, AN INNER CONDUCTOR HAVING A DRIVEN AND GROUNDED SECTION COUPLED BY A COUPLING SECTION AND WITH THE GROUNDED SECTION CONNECTED TO THE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |