Patent ID: 8479942

Claim:
A removable lid and container combination, comprising: a container having a body forming a defined storage chamber and an opening for providing access to the chamber, the opening having an upstanding, peripheral container rim, the container rim having a portion projecting outwardly, transverse to the opening, the outwardly projecting portion having a plurality of sets of closely spaced rim ridges, and a lid comprising a body portion dimensioned to cover at least a portion of the opening, a skirt projecting from the body portion and formed to surround and engage at least a portion of the container rim and for supporting the body portion in a covering relationship with the opening, and a plurality of sets of closely spaced ridges, the sets of ridges formed at multiple defined locations that are spaced from one another on an interior surface of the skirt, each of the sets of ridges directed transverse to the skirt and formed for engaging the projecting container rim, each of the sets of ridges positioned on the skirt for engaging a corresponding rim ridge set on the outwardly projecting portion of the container rim when the body portion is positioned on the container rim in a covering relationship with the opening, the sets of ridges and the sets of rim ridges formed to frictionally engage one another such that the lid at the location of the corresponding ridge sets is secured to the container rim to a greater extent than the remaining portions of the interior of the skirt for retaining the lid on the container rim.