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. 19, 2006
Filed:
Sep. 22, 1999
Applicants:
Christoph Weder, Gattikon, CH;
Paul Smith, Zürich, CH;
Inventors:
Christoph Weder, Gattikon, CH;
Paul Smith, Zürich, CH;
Assignee:
Landquart, Landquart-Fabriken, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention describes security paper and security items in general containing at least one security element having at least one photoluminescent segment characterized by a linearly polarized photoluminescence and/or a linearly polarized absorption. The present invention also describes a method of producing such security items as well as the use thereof.