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. 19, 1989
Filed:
May. 20, 1987
Applicant:
Inventors:
Kurt Schiller, Mering, DE;
Johann Luger, Munich, DE;
Hans Schierl, Steinhoering, DE;
Heinrich Kallhardt, Munich, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ; H02H / ; H02H / ; H05F / ;
U.S. Cl.
CPC ...
379437 ; 361 91 ; 361117 ; 361118 ; 361119 ; 379433 ; 379440 ; 379451 ;
Abstract
An electrically conductive network which, at one end, has a low-resistance connection with a user's hand and, at the other end, has a high-resistance connection with ground. This protects electrical equipment such as a telephone keyset from electrostatic discharge and also protects the user from unpleasantly high discharge currents.