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:
May. 21, 2013
Filed:
Jul. 29, 2008
Applicants:
Liangheng Xu, Shanghai, CN;
Kai Yang, Shanghai, CN;
Aiming GE, Shanghai, CN;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/128 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed herein are an anti-counterfeiting film and a process for preparation thereof. The anti-counterfeiting film comprises a protective layer (), a binder layer (), a retroreflective layer (), a photopolymerizable information layer () and a reflective layer () which are combined in turn. The retroreflective layer () is embedded spherically in the binder layer (), and the photopolymerizable information layer () has been recorded with graphics information which can change along with the viewing angle.