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:
Jan. 20, 1981
Filed:
Jul. 17, 1978
Applicant:
Inventors:
Hideo Sawada, Osaka, JP;
Motoharu Kotani, Sakai, JP;
Koji Sato, Sakai, JP;
Toichiro Izawa, Chiba, JP;
Ken-ichiro Sugimori, Tokyo, JP;
Akisato Katanosaka, Toyonaka, JP;
Assignees:
Daicel Ltd., Tokyo, JP;
Goseikagaku Institute Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
53 74 ; 55 97 ; 55316 ; 55522 ; 55387 ; 2523 / ; 131202 ;
Abstract
A smoke filter for removing injurious components from the smoke. Comprises a fiber matrix in conjunction with a water-swellable synthetic mica. The fiber matrix may be made of cellulose acetate, regenerated cellulose, or the like. The water-swellable synthetic mica is of the general formula