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. 11, 1985
Filed:
Oct. 24, 1983
Applicant:
Inventors:
James C Stevens, Plainfield, IN (US);
James R Haynes, Indianapolis, IN (US);
Assignee:
Uniden Corporation of America, Indianapolis, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 340328 ; 340329 ;
Abstract
Improved ringer signal circuitry in a telephone handset modifies the leading edge of the ringer signal envelope causing ringer volume to gradually increase, over a period of time, to its maximum value.