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:
Jul. 24, 1984
Filed:
Mar. 03, 1983
Applicant:
Inventors:
Ronald E Olson, Burtonsville, MD (US);
William H Windel, Burtonsville, MD (US);
John M Harrison, Concord, NH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179 / ; 179 / ;
Abstract
A system is disclosed which may readily be added to an existing system of phones and electrical outlets. It includes circuitry that, responsive to sensing of a condition, seizes a telephone line, dials a single digit and introduces a preferably beeping signal into the line to warn the switchboard operator of the sensed condition. The system repeats the cycle until the sensed condition ceases.