US3324474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotatable horn antenna with feed moveable out of horn to form omnidirectional antenna
Assignee: General Dynamics Corp
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Filing: 1964-09-18
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Granted: 1967-06-06
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Expires: 1984-09-18
Abstract
No abstract record available.
Inventors
- 👤 John B Gehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:02
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/002; H01Q13/00; H01Q13/02; H01Q3/00; H01Q3/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A DUAL FUNCTION ANTENNA FOR RADIATING ELECTRO-MAGNETIC ENERGY IN EITHER A DIRECTIONAL OR AN OMNIDIRECTIONAL RADIATION PATTERN COMPRISING FIRST AND SECOND APERTURED, CONDUCTIVE PLATES SECURED IN A SPACED RELATIONSHIP WITH RESPECT TO EACH OTHER; RADIATION REFLECTOR MEANS DISPOSED BETWEEN SAID PLATES AND EXTENDING RADIALLY TOWARD THE PERIPHERY OF A PORTION OF SAID PLATES; AN EXTENDABLE-RETRACTABLE ANTENNA MEANS HAVING A RADIATION RESPONSIVE
Claim 2
Dependent Claim
61 words
A DUAL FUNCTION ANTENNA FOR RADIATING ELECTRO-MAGNETIC ENERGY IN EITHER A DIRECTIONAL OR AN OMNIDIRECTIONAL RADIATION PATTERN COMPRISING FIRST AND SECOND APERTURED, CONDUCTIVE PLATES SECURED IN A SPACED RELATIONSHIP WITH RESPECT TO EACH OTHER; RADIATION REFLECTOR MEANS DISPOSED BETWEEN SAID PLATES AND EXTENDING RADIALLY TOWARD THE PERIPHERY OF A PORTION OF SAID PLATES; AN EXTENDABLE-RETRACTABLE ANTENNA MEANS HAVING A RADIATION RESPONSIVE
References Cited (Backward Citations)
US3141169A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |