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:
Jun. 29, 2004
Filed:
Jan. 15, 2003
Gerhard Stenzel, Germering, DE;
Wittich Kaule, Emmering, DE;
Giesecke & De Vrient GmbH, Munich, DE;
Abstract
The invention relates to a document of value consisting of a substrate of predetermined surface area with a printed image visible to the naked eye and a marking in the form of characters, patterns or the like at least partly superimposed on the printed image. The marking is represented by a feature substance having at least one mechanically detectable physical property and extends over the predominant part of the surface of the document. The marking additionally has a given measurable regularity which makes it possible, by mechanical scanning of the marking, to detect the correctness of the distribution and recognize gaps or added partial elements of other authentic documents as disturbances.