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:
May. 02, 1978
Filed:
Nov. 05, 1976
Applicant:
Inventors:
Leonard P Frieder, Jr, Dalton, PA (US);
Jackson A Aileo, Carbondale, PA (US);
Assignee:
Gentex Corporation, Carbondale, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H04R / ;
U.S. Cl.
CPC ...
1791 / ; 1791 / ;
Abstract
A head gear assembly including first and second sound attenuating earcups and means for supporting the earcups over the ears of a wearer and in which each of said earcups has an earphone therein, one of said earcups has a contact microphone therein and switch means is provided for enabling said contact microphone while disabling the earphone in the cup in which the contact microphone is located.