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. 17, 2019
Filed:
Aug. 23, 2018
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Bruce D. Orensteen, St. Paul, MN (US);
Robert Leland Wee Smithson, Mahtomedi, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/12 (2006.01); G02B 5/124 (2006.01); G09F 13/16 (2006.01); B60R 13/10 (2006.01);
U.S. Cl.
CPC ...
G02B 5/124 (2013.01); G09F 13/16 (2013.01); B60R 13/10 (2013.01);
Abstract
A method of marking prismatic retroreflective sheeting includes providing prismatic retroreflective sheeting having a front side and a back side, the back side having prismatic features and directing a radiation source at the back side of the prismatic retroreflective sheeting and irradiating a plurality of the prismatic features. The radiation forms a mark in the prismatic retroreflective sheeting.