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:
Mar. 14, 2017
Filed:
Jun. 13, 2011
Denis Vere, Argentre du Plessis, FR;
Aurélie Barbotin, Noyal sur Vilaine, FR;
Denis Vere, Argentre du Plessis, FR;
Aurélie Barbotin, Noyal sur Vilaine, FR;
OBERTHUR TECHNOLOGIES, Levallois Perret, FR;
Abstract
An imprint () that represents a predefined pattern on an article. Article () comprises a body () made of a first material with a first thermal expansion coefficient (C). The method comprises a step of incorporating a piece () in body () made of a second material with a second thermal expansion coefficient (C), lower than the first coefficient, a step of heating article () to a predefined temperature to induce expansion of the materials, and then a step of cooling article () to induce shrinkage of the materials, generating a mechanicals stress that deforms article (). Piece () is shaped so that the deformation generated corresponds to predefined pattern ().