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:
Oct. 24, 2017
Filed:
May. 05, 2009
Jacques Perrier, Commugny, CH;
Jacques Perrier, Commugny, CH;
KBA-NotaSys SA, Lausanne, CH;
Abstract
There is described a method for manufacturing intaglio printing plates for the production of security papers, wherein a laser beam () is used to engrave intaglio printing patterns () directly into the surface of a laser-engravable, especially metallic, printing plate medium (), wherein laser engraving of the printing plate medium () is carried out layer by layer in several individual engraving steps performed one after the other in register so that the intaglio printing patterns () are gradually engraved into the surface of the printing plate medium () up to desired engraving depths, the surface of the engraved printing plate medium () being cleaned from residues of the laser engraving process following and between each individual engraving step.