Heat actuated game
First Claim
1. A game apparatus comprising a plurality of substrates having a plurality of indicia applied to a portion of a surface of each of said plurality of substrates for viewing by a player of the game, each of said plurality of substrates having thereon means rendering the indicia thereof invisible at a first temperature so that the indicia cannot be read by the player, said means being actuable by a change in temperature thereof to a temperature significantly greater than that obtainable by simple contact with the body heat of the player to render the indicia visible for reading by the player, wherein there is provided on each of said plurality of substrates at least one further indicium and coating means obscuring said further indicium, the coating means being removable only in a manner which leaves the further indicium permanently exposed, wherein a winning substrate is indicted by the presence of a common indicium both on each of the indicia of the winning substrate of said plurality of substrates, and on said at least one further indicium of the winning substrate.
1 Assignment
0 Petitions
Accused Products
Abstract
A lottery type game includes a plurality of indicia which can be exposed to reveal a winning or losing line and has a central indicium covered by scratchable ink and two other indicia covered by an ink which is normally opaque at room temperature but which becomes transparent on heating. The game can be used for the packaging of heatable food products or for other promotions relating to heating equipment.
69 Citations
2 Claims
- 1. A game apparatus comprising a plurality of substrates having a plurality of indicia applied to a portion of a surface of each of said plurality of substrates for viewing by a player of the game, each of said plurality of substrates having thereon means rendering the indicia thereof invisible at a first temperature so that the indicia cannot be read by the player, said means being actuable by a change in temperature thereof to a temperature significantly greater than that obtainable by simple contact with the body heat of the player to render the indicia visible for reading by the player, wherein there is provided on each of said plurality of substrates at least one further indicium and coating means obscuring said further indicium, the coating means being removable only in a manner which leaves the further indicium permanently exposed, wherein a winning substrate is indicted by the presence of a common indicium both on each of the indicia of the winning substrate of said plurality of substrates, and on said at least one further indicium of the winning substrate.
Specification