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Secure contest card

  • US 4,095,824 A
  • Filed: 07/01/1976
  • Issued: 06/20/1978
  • Est. Priority Date: 07/01/1976
  • Status: Expired due to Term
First Claim
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1. A contest card for temporarily and completely concealing the presence, absence, position or nature of indicia printed on said card comprising a smooth surface card stock material having an upper surface and a lower surface, indicia printed on the upper surface of said card stock material, an opaque sectionally removable mask overlying said indicia, and a patterned intermediate layer of material positioned immediately above said indicia but beneath said opaque mask, said patterned layer being transparent so that an observer may read the indicia after removal of the mask.

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