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:
Sep. 04, 2001
Filed:
Jun. 10, 1997
Applicant:
Inventors:
Wittich Kaule, Emmering, DE;
Gregor Grauvogl, Munich, DE;
Assignee:
Giesecke and Devrient GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 7/00 ; B41M 1/312 ;
U.S. Cl.
CPC ...
B32B 7/00 ; B41M 1/312 ;
Abstract
The invention relates to a multilayer foil, in particular a transfer foil. The transfer foil consists of a carrier. foil, a one- or multilayer transfer layer containing an optically variable structure, and an intermediate layer located between the carrier foil and the transfer layer, the intermediate layer being a metal oxide or semiconductor oxide layer.