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. 15, 2015
Filed:
May. 03, 2012
Applicants:
Erich Klein, Himberg, AT;
Ernst Tomas, Stasshof an der Nordbahn, AT;
Inventors:
Erich Klein, Himberg, AT;
Ernst Tomas, Stasshof an der Nordbahn, AT;
Assignee:
Knowles IPC (M) Sdn. Bhd., Penang, MY;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 1/02 (2006.01); H04R 9/02 (2006.01); H04R 1/08 (2006.01); H04M 1/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/028 (2013.01); H04M 1/026 (2013.01); H04R 1/02 (2013.01); H04R 1/023 (2013.01); H04R 1/086 (2013.01); H04R 9/025 (2013.01); H04R 2499/11 (2013.01);
Abstract
A loudspeaker in which a magnetic particle filter is provided in the vicinity of a sound outlet port.