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:
Feb. 05, 2008
Filed:
Oct. 14, 2005
Paul D. Graham, Woodbury, MN (US);
Jonathan P. Kitchin, Leander, TX (US);
Paul D. Graham, Woodbury, MN (US);
Jonathan P. Kitchin, Leander, TX (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An anti-copy film is disclosed. The film has a light transmissive imageable substrate having opposing first and second surfaces. Each surface has an image receptive coating. Complementary positive and negative images are disposed on the first and second surfaces such that an imaged area on the first surface is in registration with a non-imaged area on the second surface. The anti-copy film appears substantially opaque when viewed orthogonally to and appears partially transparent when viewed obliquely to either the first or second surfaces.