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:
Nov. 11, 2008
Filed:
Feb. 18, 2004
Applicants:
Kiyotaka Sugiura, Nagoya, JP;
Nobuhiro Aoki, Nagoya, JP;
Hiroyuki Oyachi, Handa, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 63/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The filterof the present invention has at least two filter elementscontained in the casing, which are connected in series in such a state as interposing the first sealerbetween them.