Patent US3268903A successfully refreshed from Google Patents.
US3268903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extendible dipole antenna
Assignee: Avco Corp
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Filing: 1962-12-12
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Granted: 1966-08-23
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 John A Kuecken
- 👤 Colony Charles Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:18
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN EXTENDIBLE DIPOLE ANTENNA COMPRISING AN EXTENDIBLE SECTION OF COAXIAL RADIO FREQUENCY TRANSMISSION LINE HAVING AN OUTER CONDUCTOR AND A CENTER CONDUCTOR, AN ELONGATED CONDUCTOR COUPLED ELECTRICALLY TO THE CENTER CONDUCTOR OF SAID TRANSMISSION LINE, SAID ELONGATED CONDUCTOR BEING EXTENDIBLE WITH RESPECT TO SAID TRANSMISSION LINE, MEANS FOR SUPPORTING SAID TRANSMISSION LINE AND SAID ELONGATED CONDUCTOR TO FORM A DIPOLE ENTENNA FED AT THE JUNCTION SAID ELONGATED CONDUCTOR AND SAID TRANSMISSION LINE, MEANS FOR SIMULTANEOUSLY EXTENDING SAID TRANSMISSION LINE AND EXTENDING SAID ELONGATED CONDUCTOR WITH RESPECT TO SAID TRANSMISSION LINE WHILE MAINTAINING THEIR EXTENDED LENGTHS IN A PREDETERMINED RATIO, A RADIO FREQUENCY INPUT TO SAID ANTNNA ELECTRICALLY COUPLED TO SAID TRANSMISSION LINE, AND A STORAGE REEL HAVING AN AXIS EXTENDING IN A DIRECTION NORMAL TO SAID DIPOLE ANTENNA, SAID COAXIAL LINE BEING AT LEAST IN PART WOUND AROUND SAID REEL SO THAT THE TURNS ON SAID CENTRAL CONDUCTOR PROVIDE A RADIO FREQUENCY CHOKE ISOLATING THE RADIATION SIGNAL PROPAGATED ON THE OUTER CONDUCTOR OF SAID RADIO FREQUENCY TRANSMISSION LINE FROM SAID RADIO FREQUENCY INPUT.
Claim 2
Dependent Claim
173 words
AN EXTENDIBLE DIPOLE ANTENNA COMPRISING AN EXTENDIBLE SECTION OF COAXIAL RADIO FREQUENCY TRANSMISSION LINE HAVING AN OUTER CONDUCTOR AND A CENTER CONDUCTOR, AN ELONGATED CONDUCTOR COUPLED ELECTRICALLY TO THE CENTER CONDUCTOR OF SAID TRANSMISSION LINE, SAID ELONGATED CONDUCTOR BEING EXTENDIBLE WITH RESPECT TO SAID TRANSMISSION LINE, MEANS FOR SUPPORTING SAID TRANSMISSION LINE AND SAID ELONGATED CONDUCTOR TO FORM A DIPOLE ENTENNA FED AT THE JUNCTION SAID ELONGATED CONDUCTOR AND SAID TRANSMISSION LINE, MEANS FOR SIMULTANEOUSLY EXTENDING SAID TRANSMISSION LINE AND EXTENDING SAID ELONGATED CONDUCTOR WITH RESPECT TO SAID TRANSMISSION LINE WHILE MAINTAINING THEIR EXTENDED LENGTHS IN A PREDETERMINED RATIO, A RADIO FREQUENCY INPUT TO SAID ANTNNA ELECTRICALLY COUPLED TO SAID TRANSMISSION LINE, AND A STORAGE REEL HAVING AN AXIS EXTENDING IN A DIRECTION NORMAL TO SAID DIPOLE ANTENNA, SAID COAXIAL LINE BEING AT LEAST IN PART WOUND AROUND SAID REEL SO THAT THE TURNS ON SAID CENTRAL CONDUCTOR PROVIDE A RADIO FREQUENCY CHOKE ISOLATING THE RADIATION SIGNAL PROPAGATED ON THE OUTER CONDUCTOR OF SAID RADIO FREQUENCY TRANSMISSION LINE FROM SAID RADIO FREQUENCY INPUT.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |