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:
Jul. 11, 1995
Filed:
Feb. 08, 1994
Applicant:
Inventor:
Seppo Yrjola, Oulu, FI;
Assignee:
LK-Products Oy, Kempele, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P / ; H01P / ;
U.S. Cl.
CPC ...
333202 ; 333206 ;
Abstract
A filter (1) for filtering certain frequencies of an electric signal. The filter (1) comprises components (HX1-HX4) for forming the frequency response of the filter, and components (A,C) for accomplishing coupling and impedance matching. The filter is provided with a directional coupler (10) composed of two transmission lines (A,B), one of them being a coupling line (A) or an impedance matching line.
Yrjola, Seppo. (1995). Filter with strip lines (U.S. Patent No. 5432489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5432489
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