Patent attributes
A container to hold contents therein is described with a gauge to indicate the level of contents in the container. The container can be a prescription container to store capsules, tablets, pills and the like. A label is affixed outside the container and is substantially opaque such that the interior is not visible through the label. The label including a vertical, transparent viewing window to see past the label, through the container wall to view the contents therein. The label includes indicia and indicators adjacent the window to indicate a time remaining for the supply of contents in the container or other characteristics of the contents. The time remaining can be calculated by the container volume and characteristics of the contents.