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:
Jun. 12, 1979
Filed:
Jul. 11, 1977
Henley F Sterling, Great Dunmow, GB;
Donald A Weir, Goff's Oak, near Cheshunt, GB;
Rodger G George, Bishops Stortford, GB;
John V Baxter, Bishops Stortford, GB;
International Standard Electric Corporation, New York, NY (US);
Abstract
A line current detector for use in telecommunications systems to monitor line condition. The detector uses an optical or photo electric device whose input is modulated by line current. A photo transistor, electrically isolated from the line, senses the modulated output of the detector to produce a condition responsive output. The optical device is preferably a liquid crystal device. The output sensor is isolated from the line.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile