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. 13, 2019
Filed:
Mar. 06, 2012
Applicants:
Thomas E. Pahl, Ames, IA (US);
John G. Petersen, Center City, MN (US);
Michael P. Wald, Ankeny, IA (US);
Inventors:
Thomas E. Pahl, Ames, IA (US);
John G. Petersen, Center City, MN (US);
Michael P. Wald, Ankeny, IA (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 11/02 (2006.01); B24D 3/34 (2006.01);
U.S. Cl.
CPC ...
B24D 11/02 (2013.01); B24D 3/346 (2013.01);
Abstract
A sheet of coarse sandpaper includes a backing layer having opposed first and second major surfaces, an adhesive make coat on the second major surface, coarse abrasive particles at least partially embedded in the make coat, thereby defining a coarse abrasive surface, and an exposed non-slip coating layer on the first major surface. Methods of making and using such coarse sandpaper are also provided.