Carton having a hinged end closure

Claim 1

A HINGED UPPER END CLOSURE FOR A RECTANGULAR CARTON HAVING A BODY PORTION CLOSED AT ITS LOWER END AND COMPRISING FRONT AND REAR SIDE WALL PANELS CONNECTED ALONG THEIR SIDE EDGES TO A PAIR OF END WALL PANELS, SAID HINGED END CLOSURE BEING FORMED BY INTEGRAL EXTENSIONS FROM THE TOP EDGES OF SAID WALL PANELS, AND INCLUDING: AN INTEGRAL THREE-SECTION EXTENSION PORTION EXTENDING FROM SAID REAR AND SAID END WALL PANELS AND CONNECTED TO THE TOP EDGES THEREOF BY WEAKENED LINES PROVIDING FRANGIBLE CONNECTING PORTIONS, SAID TOP EDGES LYING IN A COMMON PLANE, AND SAID THREE-SECTION PORTION BEING FOLDED DOWNWARDLY AND UPWARDLY TO PROVIDE A TWO-PLY BAND ABOUT THE UPPER PORTION OF SAID FRONT AND SIDE WALL PANELS, THE CONFRONTING SURFACES OF SAID TWO-PLY BAND BEING INTEGRAL AND UNINTERRUPTED BY WEAKENED LINES THROUHOUT THE EXTENT THEREOF AND BEING ADHESIVELY SECURED TOGETHER, AND THERE BEING RELATIVELY SHORT, SEPARATE FRONT AND END FLAPS PROJECTING UPWARDLY FROM SAID TWO-PLY BAND WHICH ARE FOLDED INWARDLY, SAID THREE-SECTION PORTION BEING PROVIDED WITH PARALLEL VERTICAL SCORE LINES CONNECTING THE SECTIONS THEREOF, SAID SCORE LINES BEING OFFSET OUTWARDLY FROM THE SIDE EDGES OF SAID FRONT WALL PANEL JUST SUFFICIENTLY TO ALLOW CLEARANCE FOR FOLDING THE TWO-PLY BAND ABOUT THE FRONT CORNERS OF THE UPPER PORTION OF THE CARTON WITHOUT EFFECTING BOWING OF SAID FRONT WALL PANEL; AND ON INWARDLY FOLDED FLAP HINGEDLY CONNECTED TO THE TOP EDGE OF SAID REAR WALL PANEL AND ADHESIVELY SECURED TO SAID RELATIVELY SHORT, INWARDLY FOLDED FRONT AND END FLAPS TO PROVIDE A HINGED COVER CONNECTED TO THE TOP EDGE OF SAID FRONT AND END WALL PANELS BY SAID FRANGIBLE CONNECTING PORTIONS.