Abstract: A container cover locking assembly comprises a base member with a continuous peripheral skirt depending therefrom and a ridge parallel to yet spaced inwardly from the skirt along the underside of the base member. Tapered locking lips which depend downwardly from the ridge, extend along a substantial portion thereof and curve outwardly toward yet terminate skirt of the skirt. The locking assembly allows a simplified molding process for a container cover which is assembled with a container body of the type having curved mounting seat formed from the upper edge of the container walls.