Blank for double walled carton

Claim 1

A FLAT CARTON BLANK OF THIN FOLDABLE MATERIAL HAVING A FRONT PANEL PORTION, SIDE PANEL PORTIONS AND REAR WALL PORTIONS OF THE SAME WIDTH AS THE FRONT PANEL WHEN IN PARTIALLY OVERLAPPED RELATION WITH EACH OTHER, THE SAID PANEL PORTIONS BEING DEFINED BY VERTICAL CREASE LINES EXTENDING THE WIDTH OF THE BLANK AND HAVING A TOP AND BOTTOM CREASE LINE EXTENDING THE LENGTH OF THE BLANK AND CROSSING THE VERTICAL CREASE LINES DEFINING A PLURALITY OF FOLDABLE FLAPS AT THE TOP OF THE BLANK TO FORM A BELLOWS CLOSURE FOR THE CARTON AND ALSO DEFINING A PLURALITY OF FLAPS TO FORM A BOTTOM FOR THE CARTON INTEGRAL WITH THE FRONT AND REAR PANELS AND THE SAID SIDE PANELS, AND A LINER FOR THE BODY PORTION OF THE CARTON HAVING CREASE LINES THEREACROSS EXTENDING FROM TOP TO BOTTOM DEFINING SOME PANELS COMPARABLE TO THE PANELS OF THE CARTON BLANK WITH THE OUTER PANELS OF THE LINER BEING NARROWER AT ONE SIDE AND WIDER ON THE OPPOSITE EDGE THAN ARE THE COMPARABLE CARTON PANELS THE EDGE OF THE NARROW PANEL OF THE LINER BEING ADAPTED TO ABUT THE EDGE OF ONE REAR WALL PORTION OF THE CARTON WITH THE OTHER REAR WALL PORTION OF THE CARTON BEING ADAPTED TO OVERLIE THE MEETING EDGES OF THE LINER AND CARTON, THE CREASE LINES BEING INDENTED FROM THE OUTER SIDES OF THE CARTON BLANK WITH RIBS FORMED ON THE INNER FACES WITH THE RIBS ON THE CARTON BLANK BEING PLACED IN REGISTER WITH THE CREASE LINES ON THE LINER, WITH THE CREASE LINES ON THE LINER BEING SLIGHTLY WIDER THAN THE RIBS ON THE CARTON BLANK.