US3403405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescoping folded monopole with capacitance at input
Assignee: United States Department of the Navy
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Filing: 1965-01-08
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Granted: 1968-09-24
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Expires: 1985-01-08
Abstract
No abstract record available.
Inventors
- 👤 Barrar Richard
- 👤 Albert R Giddis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:37
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/08; H01Q1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
AN ADJUSTABLE BROADBAND FOLDED MONOPOLE ANTENNA SYSTEM FOR OPERATION IN CONJUNCTION WITH A GROUND PLANE WHICH COMPRISES: A FED METALLIC ANTENNA SECTION HAVING A PLURALITY OF EXTENSIBLE INTERTELESCOPING ELEMENTS, AN UNFED METALLIC ANTENNA SECTION HAVING A PLURALITY OF EXTENSIBLE INTERTELESCOPING ELEMENTS, SAID GROUND PLANE HAVING AN APERTURE THERETHROUGH OPENING OUTWARDLY THEREOF, SAID UNFED SECTION HAVING ONE END THEREOF AFFIXED TO SAID GROUND PLANE AND EXTENDING OUTWARDLY THEREOF, SAID FED SECTION DISPOSED WITH ONE END PROXIMATE SAID APERTURE, ALIGNED WITH AND ISOLATED FROM SAID GROUND PLANE, A SERIES CAPACITANCE TO SAID ONE END OF SAID FED SECTION AND DISPOSED ENTIRELY WITHIN SAID APERTURE,
Claim 2
Dependent Claim
102 words
AN ADJUSTABLE BROADBAND FOLDED MONOPOLE ANTENNA SYSTEM FOR OPERATION IN CONJUNCTION WITH A GROUND PLANE WHICH COMPRISES: A FED METALLIC ANTENNA SECTION HAVING A PLURALITY OF EXTENSIBLE INTERTELESCOPING ELEMENTS, AN UNFED METALLIC ANTENNA SECTION HAVING A PLURALITY OF EXTENSIBLE INTERTELESCOPING ELEMENTS, SAID GROUND PLANE HAVING AN APERTURE THERETHROUGH OPENING OUTWARDLY THEREOF, SAID UNFED SECTION HAVING ONE END THEREOF AFFIXED TO SAID GROUND PLANE AND EXTENDING OUTWARDLY THEREOF, SAID FED SECTION DISPOSED WITH ONE END PROXIMATE SAID APERTURE, ALIGNED WITH AND ISOLATED FROM SAID GROUND PLANE, A SERIES CAPACITANCE TO SAID ONE END OF SAID FED SECTION AND DISPOSED ENTIRELY WITHIN SAID APERTURE,
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |