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Claim 1

A GABLE TOP CONTAINER FORMED OF PAPERBOARD OR THE LIKE, COMPRISING A TUBULAR BODY RECTANGULAR IN CROSS SECTION AND HAVING A BOTTOM CLOSURE AFFIXED THERETO, A PAIR OF OPPOSED FRONT AND REAR ROOF CLOSURE PANELS INCLINED TOWARD EACH OTHER AND OVERLYING SAID BODY, A PAIR OF OPPOSED END CLOSURE PANELS INFOLDED BETWEEN SAID ROOF PANELS FROM THE OPPOSITE GABLE ENDS FORMED BY THE LATTER, EACH OF SAID END CLOSURE PANELS INCLUDING AN END CLOSURE PORTION AND A PAIR OF TRIANGULAR FOLD-BACK PORTIONS INTEGRAL THEREWITH AND WITH THE RESPECTIVE ADJACENT ROOF CLOSURE PANEL, SAID FOLD-BACK PANEL PORTIONS BEING FOLDED AGAINST THE UNDER SIDES OF SAID ROOF CLOSURE PANELS, A RIB PANEL SURMOUNTING EACH OF SAID ROOF CLOSURE PANELS AND FOLD-BACK PANEL PORTIONS, SAID RIB PANELS BEING DISPOSED VERTICALLY AND BEING JOINED TOGETHER WITH A PERMANENT ADHESIVE BOND TO DEFINE A CENTRAL LAMINAR TOP RIB, SAID FRONT ROOF CLOSURE PANEL BEING FORMED WITH A WEAKENED LINE OF SEVERANCE LYING SOLELY WITHIN SAID FRONT ROOF CLOSURE PANEL AND EXTENDING TRANSVERSELY AT THE UPPER END THEREOF BELOW AND ADJACENT TO THE RESPECTIVE SURMOUNTING RIB PANEL, SAID WEAKENED LINE OF SEVERANCE TERMINATING AT ITS ENDS IN SPACED RELATION TO THE SIDE EDGES OF SAID FRONT ROOF CLOSURE PANEL AND BEING FORMED BY A SERIES OF ZIGZAG INCISIONS, THE OUTER SURFACE OF SAID FRONT ROOF CLOSURE PANEL HAVING A COATING OF THERMOPLASTIC MATERIAL PERMANENTLY BONDED THERETO, A TAPE POSITIONED ON SAID OUTER SURFACE AND OVERLYING SAID WEAKENED LINE OF SEVERANCE AND EXTENDING BEYOND THE ENDS THEREOF, AT LEAST THE INNER SURFACE OF SAID TAPE CONFRONTING SAID FRONT ROOF CLOSURE PANEL BEING FORMED OF THERMOPLASTIC MATERIAL HEAT SEALED AND PERMANENTLY BONDED TO SAID TERMOPLASTIC COATING ON SAID FRONT ROOF CLOSURE PANEL, SAID FOLDBACK PORTIONS LYING CONTIGUOUS TO SAID REAR ROOF CLOSURE PANEL BEING FORMED IN THEIR OUTER SURFACES ADJACENT THEIR OUTER ENDS WITH OUTWARDLY EXTENDING TRIANGULAR PROJECTIONS WITH THE APEXES POINTING DOWNWARLY, SAID TRIANGULAR PROJECTIONS BEING FORMED BY INCISIONS EXTENDING ONLY PART WAY THROUGH SAID FOLD-BACK PANEL PORTIONS WHICH LIE CONTIGUOUS TO SAID REAR ROOF CLOSURE PANEL, SAID TRIANGULAR PROJECTIONS SERVING TO ENGAGE THE UPPER EDGE OF THE RIB PANEL SURMOUNTING SAID FRONT ROOF CLOSURE PANEL WHEN SUCH RIB PANEL IS MOVED DOWNWARDLY FROM ITS SEALED POSITION.