Patent ID: 7909164

Claim:
A nestable packaging lid, comprising: a generally planar lid member having an upper surface and a lower surface; a plurality of dome expansions extending upwardly from the lid member, each dome expansion having a semi-spherical or parabolic shape defining a downwardly facing recess and including a base perimeter defining a base center, each dome expansion further having a frustoconical-shaped extension disposed on a top portion thereof, the dome expansions being arranged in longitudinal rows and transverse columns to define spaces therebetween on the upper surface of the generally planar lid member; and a plurality of elongate projections extending downwardly from the lower surface of the lid member, at least one projection disposed transversely between a longitudinally adjacent pair of dome expansions and at least one projection disposed longitudinally between a transversely adjacent pair of dome expansions, the at least one projection having a length with a midpoint aligned generally with the base centers of the pair of adjacent dome expansions, the at least one projection further having a height and a varied width, the varied width of the at least one projection increasing with increasing distance from the midpoint.