The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1989
Filed:
Feb. 09, 1988
Applicant:
Inventor:
Young J Choi, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
343715 ; 343745 ; 343861 ;
Abstract
A car phone antenna assembly which comprises a whip, a base mounted on a window of a car and a coupling unit having the structure for a capacitive tuning circuit. The coupling unit further comprises a coupling plate which acts as a coupling capacitor together with the base, first and second inductor members, and a variable capacitor member which can fine tune the resonant frequency of the antenna assembly.
Choi, Young. (1989). Car phone antenna assembly (U.S. Patent No. 4825217). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4825217
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