Printed matter – Having revealable concealed information – fraud preventer or... – Identifier
Patent
1986-01-14
1987-02-17
Bell, Paul A.
Printed matter
Having revealable concealed information, fraud preventer or...
Identifier
283 99, 283903, 282 115R, 346163, G09C 300, G01D 1500, B42D 1500, B41L 120
Patent
active
046434542
ABSTRACT:
An instant-game-type lottery ticket comprises a card having a coating on the front side thereof which includes a first metallic layer and an outwardly facing layer of thermally responsive chemicals, a removable opaque layer over at least a portion of the thermally responsive chemical layer and a second metallic layer on the back side of the card. The metallic layers preferably comprise vacuum deposited silver-colored metallized layers having protective transparent plastic films thereon. Game-playing indicia can be imprinted on the lottery ticket at the point of sale without damaging the removable opaque layer by selectively activating the thermally responsive chemicals under the removable opaque layer with a thermal printhead. The transparent plastic films allow the card to be thermally imprinted with a thermal printhead without damaging the printhead and the metallized layers add opacity to the lottery ticket.
REFERENCES:
patent: 3789425 (1974-01-01), Matsushima
patent: 3861952 (1975-01-01), Tokumoto et al.
patent: 3945870 (1976-03-01), Johnsen
patent: 4299637 (1981-11-01), Oberdeck et al.
patent: 4305082 (1981-12-01), Kusakawa
patent: 4460676 (1984-07-01), Fabel
Astro-Med Inc.
Bell Paul A.
Heyrana Sr. Paul M.
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