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. 05, 2013
Filed:
Sep. 15, 2005
Applicants:
Wayne Robert Tompkin, Baden, CH;
Andreas Schilling, Hagendorn, CH;
John Anthony Peters, Au, CH;
Inventors:
Assignee:
OVD Kinegram AG, Zug, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/00 (2006.01); G03H 1/00 (2006.01); G03H 1/04 (2006.01); G02B 5/18 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention concerns a security document comprising a flexible carrier and a multi-layer flexible film body which is applied to the flexible carrier and which provides one or more optical security features. The flexible multi-layer film body has an electrically controller display element for generating an optical security feature with associated electrical current source for operation of the display element in combination with an optically active diffractive structure.