Patent ID: 7742367

Claim:
A self-expiring badge or label comprising: a clear substrate having a back surface and a front surface; an opaque adhesive layer on said back surface; a liner web having a first surface and a second surface, said adhesive layer removably securing said clear substrate to said first surface; and an ink pattern on at least a portion of said second surface, said portion being configured so that, upon removal of said liner web from said adhesive layer, said portion remains secured to said clear substrate by said adhesive layer, said portion being positioned so that, upon removal of said liner web from said clear substrate, said clear substrate is foldable to place said ink pattern in contact with said adhesive layer, and said ink pattern being configured so that, when said ink pattern is in contact with said adhesive layer, said ink pattern migrates through said adhesive layer in a selected time interval and is visible through said clear substrate.