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. 08, 2015
Filed:
Feb. 17, 2011
Applicants:
Noriyuki Hagino, Shizuoka, JP;
Yoshihisa Wada, Shizuoka, JP;
Kazuhiro Takai, Aichi, JP;
Inventors:
Assignee:
SONY CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/16 (2006.01); G03B 21/14 (2006.01); B01D 46/10 (2006.01);
U.S. Cl.
CPC ...
G03B 21/14 (2013.01); G03B 21/16 (2013.01); B01D 46/10 (2013.01);
Abstract
A filter device which may include first and second filter elements allowing air to pass therethrough, and first and second filter holding members holding the first and second filter elements such that they are linearly connected side by side. The holding members being connected to be foldable in the position where the filter elements are connected.