Patent US3235871A successfully refreshed from Google Patents.
US3235871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical antenna with transversely extending, top-loading straight antenna in series therewith
Assignee: Individual
•
Filing: 1962-06-11
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Granted: 1966-02-15
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Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Valor C Smith
- 👤 Chu Lan Jen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:05
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A HELICALLY WOUND ANTENNA HAVING MEANS EXTENDING FROM NEAR ITS LOWER END FOR FEEDING THE ANTENNA, A SHORTING MECHANISM ADJUSTABLE TO SHORT-CIRCUIT SUCCESSIVE WINDINGS OF THE ANTENNA FROM THE TOP END DOWNWARDS, AND A TOP-LOADING SUBSTANTIALLY STRAIGHT ANTENNA SERIES CONNECTED TO THE SAID TOP END OF THE HELICAL ANTENNA AND EXTENDING THEREFROM TRANSVERSELY OF THE LONGITUDINAL AXIS OF THE HELICAL ANTENNA, SAID STRAIGHT ANTENNA BEING GROUNDED AT ITS END REMOTE FROM THE SAID TOP END OF THE HELICAL ANTENNA.
Claim 2
Dependent Claim
79 words
A HELICALLY WOUND ANTENNA HAVING MEANS EXTENDING FROM NEAR ITS LOWER END FOR FEEDING THE ANTENNA, A SHORTING MECHANISM ADJUSTABLE TO SHORT-CIRCUIT SUCCESSIVE WINDINGS OF THE ANTENNA FROM THE TOP END DOWNWARDS, AND A TOP-LOADING SUBSTANTIALLY STRAIGHT ANTENNA SERIES CONNECTED TO THE SAID TOP END OF THE HELICAL ANTENNA AND EXTENDING THEREFROM TRANSVERSELY OF THE LONGITUDINAL AXIS OF THE HELICAL ANTENNA, SAID STRAIGHT ANTENNA BEING GROUNDED AT ITS END REMOTE FROM THE SAID TOP END OF THE HELICAL ANTENNA.
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |