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:
Dec. 04, 2012
Filed:
Mar. 21, 2008
Applicants:
Daniel A. Billig, Maplewood, MN (US);
John L. Barry, Stacy, MN (US);
James L. Mcardle, Stillwater, MN (US);
Ann M. Hawkins, Lake Elmo, MN (US);
Inventors:
Daniel A. Billig, Maplewood, MN (US);
John L. Barry, Stacy, MN (US);
James L. McArdle, Stillwater, MN (US);
Ann M. Hawkins, Lake Elmo, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of polishing transparent armor, preferably to optical clarity. The method can be used on flat or contoured armor, manually or via robotic automation. The method includes using a step-wise progression of diamond, structured abrasive articles.