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:
May. 16, 2006
Filed:
Feb. 22, 2001
Stephen William Sankey, Great Smeaton, GB;
Julia Elizabeth Friend, Stockton-on-Tees, GB;
Stephen William Sankey, Great Smeaton, GB;
Julia Elizabeth Friend, Stockton-on-Tees, GB;
DuPont Teijin Films US Limited Partnership, Wilmington, DE (US);
Abstract
The use of a multilayer film to store or retrieve information, said information being correlated to the multilayer structure of the film, and said multilayer film comprising at least two different types of layer, wherein each type of layer exhibits a different optical property and wherein the multilayer film comprises a plurality of layers of each of at least two of the different types of layer; a method of storing information, a method of retrieving stored information and a method of protecting against counterfeiting or fraud, which method utilizes said multilayer film.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile