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. 23, 2002
Filed:
Aug. 20, 1999
Applicant:
Inventors:
Wittich Kaule, Emmering, DE;
Gregor Grauvogl, Munich, DE;
Assignee:
Giesecke & Devrient GmbH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41M 3/14 ;
U.S. Cl.
CPC ...
B41M 3/14 ;
Abstract
The invention relates to a method for producing a foil material wherein a plastic foil is provided with a lacquer layer having variable viscosity, and a relief structure is then embossed into the lacquer layer. At least during application of the lacquer layer and during the embossing process the viscosity of the lacquer layer is adjusted to a predetermined value and kept constant during the particular phase of operation. The invention fixer relates to an apparatus for carrying out this method.