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:
Sep. 28, 1999
Filed:
Apr. 03, 1997
Applicant:
Inventors:
Hisashi Nemoto, Tokyo, JP;
Kiyoyuki Takesako, Yokohama, JP;
Assignee:
Shinon Denkisangyo Kabushiki-Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15215 ; 15216 ; 15217 ; 15-151 ;
Abstract
A mat for removing dirts or dusts comprises a cushioning material made of a plurality of curled elastomeric filaments and a collector sheet of electret laying under the cushioning material. The filaments are formed of a compound of synthetic resinous material and a powdered electrical conductive material, and entangled with each other to provide a plurality of through holes or voids extending vertically through the cushioning material.