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:
Aug. 07, 2007
Filed:
Aug. 05, 2005
Applicants:
Edward J. Woo, Woodbury, MN (US);
Charles R. Wald, Oakdale, MN (US);
Curtis J. Schmidt, South St. Paul, MN (US);
Inventors:
Edward J. Woo, Woodbury, MN (US);
Charles R. Wald, Oakdale, MN (US);
Curtis J. Schmidt, South St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 3/00 (2006.01); B24D 11/02 (2006.01); B24D 18/00 (2006.01); B24B 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous abrasive article that allows air and dust particles to pass through. The abrasive article has a screen abrasive and an apertured attachment interface with hooks. The screen abrasive has an abrasive layer comprising a plurality of abrasive particles and at least one binder. The apertured attachment interface cooperates with the screen abrasive to allow the flow of particles through the abrasive article.