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:
Jun. 07, 2022
Filed:
Nov. 20, 2015
3m Innovative Properties Company, St. Paul, MN (US);
Paul D. Graham, Woodbury, MN (US);
Douglas A. Davis, Cottage Grove, MN (US);
Yugeun P. Yang, St. Paul, MN (US);
Thomas E. Pahl, Ames, IA (US);
James J. Kobe, Newport, MN (US);
Christopher J. Lee, Woodbury, MN (US);
Thomas B. Galush, Roseville, MN (US);
John G. Petersen, Center City, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An abrasive article is provided that has a backing having opposed first and second major surfaces, an abrasive layer disposed on the first major surface, and a plurality of protrusions extending outwardly from the second major surface. The protrusions comprise a polymer having a Shore A hardness ranging from 5 to 90. These articles provide an alternative sanding solution enabling abrasive articles lacking an attachment layer to be handled effectively and efficiently, providing for a technically superior abrasive sheet on the marketplace that does not use or require an attachment layer.