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:
Mar. 29, 2022
Filed:
Aug. 18, 2020
Applicant:
Bank of Canada, Ottawa, CA;
Inventors:
Charles Douglas MacPherson, Santa Barbara, CA (US);
Theodoros Garanzotis, Ottawa, CA;
Assignee:
BANK OF CANADA, Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09F 13/24 (2006.01); B42D 25/00 (2014.01); B42D 25/30 (2014.01); B42D 25/425 (2014.01); G02B 26/00 (2006.01); B42D 25/369 (2014.01); B42D 25/364 (2014.01); B82Y 20/00 (2011.01); G07D 7/12 (2016.01); B42D 25/29 (2014.01); B42D 25/24 (2014.01);
U.S. Cl.
CPC ...
B42D 25/30 (2014.10); B42D 25/00 (2014.10); B42D 25/29 (2014.10); B42D 25/364 (2014.10); B42D 25/369 (2014.10); B42D 25/425 (2014.10); B82Y 20/00 (2013.01); G02B 26/004 (2013.01); G02B 26/005 (2013.01); G07D 7/12 (2013.01); G09F 13/24 (2013.01); B42D 25/24 (2014.10);
Abstract
Security documents often incorporate security devices to prevent or hinder counterfeiters. Disclosed herein are security devices that include a fluid or fluids within the devices. Such devices, and security documents that include them, afford new techniques to check whether a security document is a legitimate or counterfeit copy.