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:
Nov. 23, 2021
Filed:
Mar. 22, 2019
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Ta-Hua Yu, Woodbury, MN (US);
William Blake Kolb, Stillwater, MN (US);
Douglas S. Dunn, Woodbury, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 25/328 (2014.01); B42D 25/373 (2014.01); B42D 25/324 (2014.01); B42D 25/351 (2014.01); B42D 25/47 (2014.01);
U.S. Cl.
CPC ...
B42D 25/328 (2014.10); B42D 25/324 (2014.10); B42D 25/351 (2014.10); B42D 25/373 (2014.10);
Abstract
A security element, including: a substrate having a first structured major surface and a second structured major surface; and a first metal layer coated on the first structured major surface, wherein the transparency of the first metal layer is between 10% and 90%; and a second metal layer coated on the second structured major surface.