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:
Apr. 07, 1998
Filed:
Jan. 03, 1997
Fredric T Morelle, Huntsville, AL (US);
Ralph C Wicker, Rochester, NY (US);
Other;
Abstract
Several techniques to acquire a counterfeit proof security document. The invention includes improvements for use with non-replicable image line frequency techniques, as well as stand-along printing techniques, that exhibit electro-optical copy and photographic copy frustration characteristics such as experiences with use of color-graduated (tonally graded) substrates, blooming or flaring print patterns, pixel differentiation of discrete indicia and combinations of these with certain printing ink (or) varnish under/overcoat.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile