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:
Mar. 27, 2012
Filed:
Dec. 17, 2008
Dwight D. Erickson, Oakdale, MN (US);
Scott R. Culler, Burnsville, MN (US);
Negus B. Adefris, Woodbury, MN (US);
John T. Boden, White Bear Lake, MN (US);
John D. Haas, Roseville, MN (US);
Dwight D. Erickson, Oakdale, MN (US);
Scott R. Culler, Burnsville, MN (US);
Negus B. Adefris, Woodbury, MN (US);
John T. Boden, White Bear Lake, MN (US);
John D. Haas, Roseville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Abrasive particles which are shaped abrasive particles each with an opening is disclosed. The shaped abrasive particles are formed from alpha alumina and have a first face and a second face separated by a thickness t. The opening in each of the shaped abrasive particles can improve grinding performance by reducing the size of a resulting wear flat, can provide a reservoir for grinding aid, and can improve adhesion to a backing in a coated abrasive article.