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:
Sep. 07, 1993
Filed:
Apr. 29, 1991
Applicant:
Inventor:
Sidney H Magid, Taipei, TW;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10K / ;
U.S. Cl.
CPC ...
181191 ; 340574 ;
Abstract
A sound anti-muffler provides at least one sound channel to permit sound from a sound generator to travel sideways to the outside air even though a hand is placed over the sound anti-muffler in an attempt to muffle the sound.