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:
Mar. 23, 2004
Filed:
Sep. 18, 2002
Applicant:
Inventors:
Masato Asahina, Yamanashi-ken, JP;
Masahito Furuya, Yamanashi-ken, JP;
Assignee:
Citizen Electronics Co., Ltd., Yamanashi-ken, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 2/500 ;
U.S. Cl.
CPC ...
H04R 2/500 ;
Abstract
A compound speaker has first and second sound production devices provided in a case. First and second sound discharge holes are formed in the case for discharging sounds produced by the first and second sound production devices, respectively. The first sound discharge hole is formed in a peripheral side wall of the case so as to discharge sounds in a lateral direction.
Asahina, Masato. (2004). Compound speaker for a portable communication device (U.S. Patent No. 6711274). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6711274
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile