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. 08, 2009
Filed:
Mar. 20, 2007
Edward J. Woo, Woodbury, MN (US);
Thomas W. Rambosek, Woodbury, MN (US);
Seyed A. Angadjivand, Woodbury, MN (US);
Mary B. Donovan, St. Paul, MN (US);
Rufus C. Sanders, Jr., Burnsville, MN (US);
Yeun-jong Chou, Woodbury, MN (US);
Edward J. Woo, Woodbury, MN (US);
Thomas W. Rambosek, Woodbury, MN (US);
Seyed A. Angadjivand, Woodbury, MN (US);
Mary B. Donovan, St. Paul, MN (US);
Rufus C. Sanders, Jr., Burnsville, MN (US);
Yeun-Jong Chou, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An abrasive article comprises a porous abrasive member, a nonwoven filter medium, and a porous attachment fabric. A plurality of openings in the porous abrasive member cooperates with the nonwoven filter medium to allow the flow of particles from an outer abrasive surface of the porous abrasive member to the porous attachment fabric. Methods of making and using the abrasive articles are included.