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. 03, 2015
Filed:
Mar. 19, 2007
Winfried Hoffmüller, Bad Tölz, DE;
Theodor Burchard, Gmund, DE;
Winfried Hoffmüller, Bad Tölz, DE;
Theodor Burchard, Gmund, DE;
Giesecke & Devrient GmbH, Munich, DE;
Abstract
The present invention relates to a security element () for security papers, value documents and the like having a diffraction pattern that exhibits an embossed relief pattern () and a coating layer () that increases the visibility of the diffraction effect of the embossed relief pattern (). According to the present invention, the relief pattern () is formed on the basis of a cholesteric liquid crystalline material () and the coating layer () includes a reflective () and/or a high-index layer ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile