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:
Sep. 05, 2000
Filed:
Oct. 27, 1997
Roger W Phillips, Santa Rosa, CA (US);
Charles T Markantes, Santa Rosa, CA (US);
Shari Powell Fisher, Santa Rosa, CA (US);
Robert G Slusser, Healdsburg, CA (US);
Patrick K Higgins, Windsor, CA (US);
Anton F Bleikolm, Ecublens, CH;
Flex Products, Inc., Santa Rosa, CA (US);
Abstract
An optically variable article comprising of a substrate and at least one non-overlapping pair of optically variable structures on the surface of the substrate, the optically variable structures having the same color at one angle of incidence and different colors at all other angles of incidence. The optically variable structures are formed from optically variable pigments, optically variable opaque foils, or optically variable multilayer thin film interference stacks.