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:
Jul. 23, 2019
Filed:
Jun. 12, 2015
Method for manufacturing a multilayer data medium with security marking which can be marked by laser
Fasver, Baillargues, FR;
Eric Philippe, Eyguieres, FR;
Laurence Bes, Jacou, FR;
FASVER, , FR;
Abstract
Disclosed is a method for manufacturing a multi-layer data medium by hot rolling under pressure, able to be marked under the effect of laser radiation applied to at least one outer surface () of this medium, in which at least one marking () with optically variable effect is disposed with respect to a laser marking sub-layer so that the outer surface () has a portion with optically variable effect optically superimposed on at least one part of the laser marking sub-layer and a portion () without marking with optically variable effect optically superimposed on at least one part of the laser marking sub-layer. These portions are produced with contents of at least one marking agent which is sensitive to the laser radiation which are different.