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. 07, 2009
Filed:
Aug. 05, 2004
Applicants:
Patrik Hoffmann, Epalinges, CH;
Tristan Bret, Lausanne, CH;
Vincent Moreau, Lausanne, CH;
Inventors:
Assignee:
KBA-Giori S.A., Lausanne, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/00 (2006.01); G03C 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for providing a security paper, in particular a banknote, with a coloured marking, comprising providing a photosensitive preparation on a portion of said document and submitting at least selected areas of said portion to a light beam, wherein said preparation is capable of forming a film on said portion and comprises a substance capable of producing colloidal metal particles under the effect of UV irradiation, and said areas are irradiated by means of an UV-light beam.