Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenneth Stephens0
Date of Patent
February 23, 2010
0Patent Application Number
117773800
Date Filed
July 13, 2007
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A scratch off lottery game card including a substrate on which a plurality of game indicia are printed on the substrate and a layer of translucent thermal ink coating is placed upon the lottery game card covering the game indicia. The translucent thermal ink coating changes its color when heat is applied, typically from the player scratching the game indicia.
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