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:
Sep. 09, 1980
Filed:
Dec. 22, 1977
Applicant:
Inventor:
Martin L Zelenz, Manlius, NY (US);
Assignee:
North American Philips Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H01P / ;
U.S. Cl.
CPC ...
358114 ; 333 / ; 333109 ; 333262 ; 358 86 ;
Abstract
A CATV subscription service control device has a switched buffer to prevent jamming signals from a switched attenuator from propagating throughout the system. The attenuator uses mutual inductance to achieve a high degree of attenuation.
Zelenz, Martin. (1980). Catv subscription service control device and attenuator therefor (U.S. Patent No. 4222066). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4222066
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile