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:
Jul. 14, 1987
Filed:
Dec. 23, 1985
Applicant:
Inventors:
Sadamitsu Murayama, Takatsuki, JP;
Makoto Tanaka, Toyonaka, JP;
Assignee:
Teijin Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; B01D / ; B01D / ;
U.S. Cl.
CPC ...
428246 ; 210504 ; 210505 ; 210508 ; 428251 ; 428252 ; 428272 ; 428273 ; 428285 ; 428286 ; 428287 ; 428289 ; 428422 ; 428428 ; 4284777 ; 428702 ; 428920 ;
Abstract
Disclosed is a chemical resistant filter material made of a fibrous structure, the fiber surface of which is coated with at least one inorganic oxide selected from oxides of silicon, aluminum and lithium, and an optional fluoropolymer resin.
Murayama, Sadamitsu. (1987). Chemical-resistant filter material (U.S. Patent No. 4680221). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4680221
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile