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:
Dec. 13, 2005
Filed:
Dec. 20, 2000
Applicant:
Gerhard Schwenk, Puchheim, DE;
Inventor:
Gerhard Schwenk, Puchheim, DE;
Assignee:
Giesecke & Devrient GmbH, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H021/30 ; B42D015/00 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to a security paper with at least two types of mottled fibers, which differ in terms of their luminescent characteristics and form a code. In each case one type of mottled fibers is present in a defined subarea of the security paper, and the code is represented by the defined geometric arrangement of the subareas on the security paper and/or by the presence or absence of mottled fibers of a specific type.