Abstract: A folding box of the type having a front side provided with a removable window cover, and a backside provided with a central bending folding, includes a flap hingedly connected with the backside and bendable along a folding line which parallels the bending fold. The flap has opposing sides which extend transversely to the bending fold, with at least one side being provided with a locking member which cooperates with a complementary locking member of the backside.

Abstract: A container made from a foil or laminate material and provided with a cover which is sealed to a flange of the container by the application of heat. In order to facilitate removal of the cover, all or all but one of the corners of the container have cuts or kerfs extending from the outer edge up to the welded bead. To open the container, the tab defined by each kerf is grasped and pulled upwardly so that the adjacent strip of cover and flange is removed by tearing along one straight side of the polygonal container. The procedure is repeated at successive sides until all or all but one of the edge strips have been removed.