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. 11, 2002
Filed:
May. 23, 1997
Pierre Doublet, Jouy-sur-Morin, FR;
Yves Douesneau, Le Kremlin Bicetre, FR;
Jean-Paul Menez, Verrieres le Buisson, FR;
Arjo Wiggins, Issy-les-Moulineaux Cedex, FR;
Abstract
A method for making a paper sheet comprising at least one region which is thinner than the rest of the sheet. According to the method, a first paper layer ( ) is formed on a wire in a first wet end of a paper-making machine, a second paper layer ( ) is formed on a wire in a second wet end of the paper-making machine, one of the two paper layers has a number of localized tinner regions ( ) so that the thickness (e ) of said paper layers in said regions is up to 50% less than the thickness (e ) of the rest of the sheet, and the two layers are joined together and dried. The resulting paper may be used in banknotes or checks.