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. 06, 1988
Filed:
Oct. 01, 1986
Applicant:
Inventors:
Assignee:
Toyo Boseki Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 22 ; 55155 ; 55DI / ; 307400 ; 4251 / ; 4251 / ;
Abstract
An electretized material for a dust filter which is made of an insulating polymer material such as polypropylene incorporated with a fatty acid metal salt in an amount of not less than 100 ppm in terms of the metal.