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:
Mar. 23, 1976
Filed:
May. 28, 1974
Applicant:
Inventor:
Robert H Beeman, Berkeley, IL (US);
Assignee:
GTE Automatic Electric Laboratories Incorporated, Northlake, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 179 / ;
Abstract
A circuit for generating precise tone signals for use in telecommunications systems, such as dial tone, busy tone, ringback tone, etc. the circuit provides tone signals at a level suitable for application for distribution throughout a telephone central office. A facility for providing interrupt of the signals at either a 60 or 120 IPM rate is included.
Beeman, Robert. (1976). Precise tone signal generator (U.S. Patent No. 3946164). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3946164
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile