Lottery ticket with hidden conductive ink security means

Details Lottery ticket with hidden conductive ink security means Lottery ticket with hidden conductive ink security means

1999-04-26

2000-11-07

Wellington, A. L.

Printed matter

Having revealable concealed information, fraud preventer or...

Having plastic laminate

283 95, 283903, B42D 1500

Patent

active

061425338

ABSTRACT:
The present invention is directed to a scratch-off type lottery ticket in which a layer comprised of a non-conductive ink region and a conductive ink region are printed below an opaque scratch-off layer. The conductive ink region is detectable through the opaque layer by conventional lottery ticket authentication/validation machines.

REFERENCES:
patent: 5601887 (1997-02-01), Rich et al.
patent: 5667250 (1997-09-01), Behm et al.
patent: 5681065 (1997-10-01), Rua, Jr. et al.
patent: 5690367 (1997-11-01), Fromer
patent: 5803504 (1998-09-01), Deshiens et al.
patent: 5887906 (1999-03-01), Sultan
patent: 5925440 (1999-07-01), Farag et al.
patent: 5984367 (1999-11-01), Barnhart et al.

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