End wall construction of folding boxes

Claim 1

AN IMPROVED END WALL CONSTRUCTION FOR FOLDING BOXES COMPRISING A BOX BOTTOM, OPPOSITELY DISPOSED SIDE WALLS ARTICULATED TO THE BOX BOTTOM AND END PANELS ARTICULATED TO THE SIDE WALLS THE END PANELS BEING OF SUFFICIENT LENGTH TO OVERLAP, AT LEAST PARTIALLY, THE END WALL CONSTRUCTION COMPRISING, A HOOK FORMATION ON ONE END PANEL, THE HOOK EXTENDING DOWNWARDLY TOWARDS THE BOTTOM; THE OTHER PANEL HAVING A SLIT IN IT FOR ENGAGEMENT BY SAID HOOK; A SHOULDER ON SAID ONE PANEL ABOVE THE HOOK, THE SHOULDER EXTENDING SUBSTANTIALLY TRANSVERSELY TO THE DIRECTION IN WHICH THE HOOK IS INSERTED INTO SAID SLIT, SAID SHOULDER ENGAGING A PORTION OF THE SLIT TO RESIST VERTICAL DISPLACEMENT OF THE ONE PANEL WITH RESPECT TO THE OTHER PANEL WHEN SAID HOOK AND SHOULDER ARE ENGAGED BY SAID SLIT; AND A TOP EDGE INTERLOCK BETWEEN SAID END PANELS, SAID INTERLOCK COMPRISING, IN EACH PANEL, A CUT EXTENDING INTO THE PANEL FROM THE TOP EDGE THEREOF, SAID CUTS COMPRISING A LOWER PORTION OF COINCIDENCE AT A DISTANCE BELOW THE TOP EDGE, THE ENTRANCE PORTION OF ONE CUT INTO THE ONE PANEL-CONSIDERING THE PANELS IN INTERENGAGED POSITION OF THE COINCIDING LOWER CUT PORTION-BEING AT A SHORTER DISTANCE FROM THE LINE OF ARTICULATION OF THE FIRST PANEL TO THE RESPECTIVE SIDE WALL AT THE BOX CORNER THAN THE ENTRANCE PORTIONS OF THE OTHER CUT IN THE OTHER PANEL FROM SAID SAME LAST NAMED LINE OF ARTICULATION.