Patent ID: 7955671

Claim:
A domed lid for a food container comprising: (a) a dome with a top wall and a sidewall; (b) a flange extending outwardly away from a lower portion of the sidewall and having an inner portion adjacent to the sidewall and an outer portion remote from the sidewall; (c) a tab extending outwardly from the flange; and (d) a rim disposed in the outer portion of the flange having a variable profile characterized in that: (i) the rim has a securing undercut extending around a majority thereof; and (ii) the rim has a first substantially vertical passive engagement profile portion disposed adjacent one side of the tab the first substantially vertical passive engagement profile portion extending to a first end of the securing undercut of the rim, and a second substantially vertical passive engagement profile portion disposed on a adjacent the other side of the tab, the second substantially vertical passive engagement profile portion extending to a second end of the securing undercut of the rim, the passive engagement profile portions are undercut, the substantially vertical passive engagement profile portions are undercut a distance of about 10 percent or less of the undercut distance of the securing undercut.