Patent ID: 6579006
Filing Date: 2003-06-17
Classification: A61J,B65D,G01K

Abstract:
A thermochromic device for use relative to a product container that provides a thermochromic indication of a temperature of a volume of product that is retained within an open inner volume of the product container, the thermochromic device comprising:a first image display for displaying a given first image; a second image display for displaying a given second image wherein the second image display comprises a layer of thermochromic material with an active temperature range over which the second image becomes visible; at least an upper surface of a product container wherein the upper surface has a top side and a bottom side; a depression in the top side of the upper surface of the product container; wherein the depression projects beyond at least an adjacent portion of the bottom side of the upper surface; wherein the first and second image displays are applied to the upper surface of the product container with the first and second image displays at least partially applied within the depression.