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:
Dec. 19, 1978
Filed:
Feb. 09, 1978
Applicant:
Inventor:
Fredrick T Cogan, London, CA;
Assignee:
Northern Telecom Limited, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ;
U.S. Cl.
CPC ...
179103 ;
Abstract
A telephone handset is formed from two elongate hollow concave parts, joined at their peripheries, with a circular recess at one end of the lower part having a receiver therein. A cover member fits on the reciver and is rotatable in the recess, and interengaging formations on the cover member and the interior surface of the recess which, on rotation of the cover member, engage and lock the cover member and receiver in the recess.