Abstract: A container is provided in the form of a cup-like container body with a round mouth closed by a lid which becomes removably replaceable upon tearing away of a circumferentially extending tear strip which initially surrounds the mouth rim of the container body as a radially outer, integral part of the lid flange. As the lid is differential pressure-thermoformed, its radially outer region is formed into a generally inverted U-shaped structure which near the juncture of the base and radially outer leg of the inverted U, is provided, within the channel, with an inverted V-shaped notch of substantially diminished wall thickness to provide a line of weakness which preferably extends nearly fully around the circumference of the lid, but for at an angularly short tear-starting site.

Abstract: A sealing lid and cup container assembly for storing and dispensing comestibles is disclosed wherein the seal is maintained during pressure and vacuum forces. The container includes a cup formed of a frusto-conical sidewall and a bottom wall secured to the sidewall at one end thereof. The sidewall has an outwardly extending and rolled rim at the periphery of its other end defining a circular opening, and a first continuous sealing ridge extending inwardly of the rim. The container also includes a circular lid which is configured and dimensioned for snap-fitting sealing engagement with the cup at its first end such that, when the lid is snapped onto the cup over the opening, the lid includes a flat circular panel having along its periphery an outer wall member which has a second continuous sealing ridge positioned for cooperative sealing engagement with the first continuous sealing ridge of the cup at at least two points of cross-sectional contact so as to provide a first internal sealing of the cup.