Patent ID: 7611284

Claim:
A closure device comprising first and second fastening strips arranged to be interlocked over a predetermined length, said first fastening strip includes first and second closure elements, said second fastening strip includes first and second closure elements, said first closure element on said first fastening strip is arranged to be interlocked over a predetermined length with said first closure element on said second fastening strip, said second closure element on said first fastening strip is arranged to be interlocked over a predetermined length with said second closure element on said second fastening strip, said first closure element on said first fastening strip is of a first color, said second closure element on said first fastening strip is of a second color, said first closure element on said second fastening strip is of a third color, said second closure element on said second fastening strip is of a fourth color, whereby, when said first closure element on said first fastening strip interlocks with said first closure element on said second fastening strip, said first and third colors produce a fifth color and whereby, when said second closure element on said first fastening strip interlocks with said second closure element on said second fastening strip, said second and fourth colors produce a sixth color, said first and second closure elements on said first fastening strip are separated by a first intermediate area, said first and second closure elements on said second fastening strip are separated by a second intermediate area, said first intermediate area is a seventh color and said second intermediate area is an eighth color.