Abstract: A stacking tray and lid assembly has a tray with an upper surface and a multiplicity of depending compartments for receiving food. The compartments are spaced inwardly from the side margins of the tray to provide a peripheral portion thereabout. The lid has a generally planar body and a depending peripheral flange with a multiplicity of bosses on the inner surface of the flange which engage the outer edge of the peripheral portion of the tray.

Abstract: A receptacle member, such as a plastic tray, is symmetrical about at least one axis and includes engagement elements of at least two, complementary interfittable forms. Two of the members are assembled in inverted, confronting relationship to one another so as to define compartments of regular configuration within the resultant container unit, which are symmetrical with respect to a medial plane therethrough.

Abstract: A utility box for storing small parts and the like has a container molded from a transparent plastic material exhibiting natural flexural characteristics with a generally rectangular configuration defined by a bottom wall and upwardly extending and outwardly tapering side and end walls. The bottom wall has a multiplicity of transversely extending ribs thereon each formed with concave side surfaces and a planar upper surface with a groove therein. The side walls of the container have pairs of aligned slots therein above the ribs of the bottom wall and recesses in the outer surface of the side wall above the slots. The side walls are also provided with pairs of aligned ribs extending upwardly from adjacent the bottom wall to the slots to form channels therebetween. A multiplicity of removable compartment dividers matingly received are seated within the grooves and channels therein, and arm portions at the upper edges thereof lock into the slots of the side walls.