Patent ID: 6647765
Filing Date: 2003-11-18
Classification: A61L,B08B,G01N

Abstract:
An apparatus for monitoring a surface in order to determine if the surface has been cleaned, comprising:a) a generally planar base member, said base member being generally rectangular shaped, said base member having a top side and a bottom side; b) an adhesive disposed on said bottom side of said base member for attaching said base member to the surface to be cleaned; c) a peel-off layer disposed on said adhesive layer in order to protect said adhesive layer; d) a permeable sheet disposed on said top side of said base member, said permeable sheet having a plurality of holes therein so that moisture can pass therethrough; e) a moisture reactive substance disposed between said permeable sheet and said base member to indicate the presence of moisture; and, f) a malleable sheet disposed on one end of said base member to indicate if the surface has been cleaned.