Multi-color overprinting of scratch-off lottery tickets

  • US 5,704,647 A
  • Filed: 02/05/1996
  • Issued: 01/06/1998
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of producing a lottery ticket comprising:

  • (a) applying printed indicia on a substrate;

    (b) covering at least a portion of the printed indicia with a scratch-off layer; and

    (c) applying an overprinting layer over the scratch-off layer, said overprinting layer comprising an image obtained from a design in which at least two colors in the design have been separated into screened half tone images of each color and then said images are superimposed in separate printing steps to form said overprinting layer.

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