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:
Apr. 28, 1992
Filed:
Oct. 25, 1990
Applicant:
Inventor:
Kenji Watanabe, Kitakyushu, JP;
Assignee:
Casle Industrial Co., Ltd., Kitakyushu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
295251 ; 24303 ; 55467 ; 55511 ; 55DI / ; 55DI / ; 2482065 ;
Abstract
A method of attaching a sheet filter to an inlet opening by covering the inlet opening with a wide sheet filter and fixing the periphery of said sheet filter to the periphery of said inlet opening by use of magnet holders or other fixing means so as to enable a replacement of only the filter which has become dirty by the use.
Watanabe, Kenji. (1992). Method of attaching sheet filter to inlet opening of ventilation fan or (U.S. Patent No. 5107580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5107580
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile