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:
Apr. 16, 2002
Filed:
Jun. 28, 1995
Applicant:
Inventor:
Vincent D. Romero, St. Paul, MN (US);
Assignee:
3M Innovative Properties Company, Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23F 2/103 ; B23F 2/123 ;
U.S. Cl.
CPC ...
B23F 2/103 ; B23F 2/123 ;
Abstract
An abrasive article having a patterned abrasive surface is provided. In accordance with the present invention, the article comprises a substrate having a first side. A plurality of raised portions are positioned on the first side of the substrate with the raised portions defining recessed areas between each raised portion. A first adhesive layer is applied to the raised portions and an abrasive material is deposited onto the first adhesive layer thereby coating the raised portions of the substrate to form an abrasive coating with the recessed areas remaining free of the abrasive material.