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:
Apr. 12, 2011
Filed:
Aug. 09, 2004
Applicants:
Manfred Heim, München, DE;
Ralf Liebler, Gmund, DE;
Markus Krombholz, Holzkirchen, DE;
Inventors:
Assignee:
Giesecke & Devrient GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); B32B 7/00 (2006.01); B41M 3/14 (2006.01); B44F 1/12 (2006.01); C09D 11/02 (2006.01); B05D 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a security element for security papers, documents of value and the like having a thin-layer element () with color shift effect, which has a reflection layer (), an absorber layer () and a spacer layer () disposed between reflection layer () and absorber layer (). According to the invention the spacer layer () is formed by a printed layer having dispersion particles () with monomodal or oligomodal size distribution.