Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Reexamination Certificate
2005-08-30
2005-08-30
Hess, Bruce H. (Department: 1774)
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
C283S902000, C428S916000
Reexamination Certificate
active
06936334
ABSTRACT:
A medium for displaying information thereon, the medium includes a substrate; and visible information formed from a plurality of colors displayed on the substrate; wherein at least one of the colors includes at least one visible colorant and at least one invisible colorant which invisible colorant is imperceptible to the human eye and which is not present in a reproduction therefrom for detecting counterfeiting or forgery.
REFERENCES:
patent: 3886083 (1975-05-01), Laxer
patent: 4866025 (1989-09-01), Byers et al.
patent: 4866027 (1989-09-01), Henzel
patent: 4942141 (1990-07-01), DeBoer et al.
patent: 4950640 (1990-08-01), Evans et al.
patent: 5586787 (1996-12-01), Brown et al.
Blazey Richard N.
Paz-Pujalt Gustavo R.
Stephany Thomas M.
Williams Kevin W.
Eastman Kodak Company
Hess Bruce H.
Watkins Peyton C.
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