Boxboard container

Claim 1

IN A CONTAINER OF THE CHARACTER DESCRIBED AND FORMED FROM A BLANK OF A SUITABLY STIFF, FOLDABLE SHEET MATERIAL HAVING A LAMINAR STRUCTURE CHARACTERISTIC OF COMBINED BOARD AND VAT LINED BOARD, THE COMBINATION OF (A) A FRONT WALL PANEL, (B) A REAR WALL PANEL CONSTITUTING AN EXTENSION OF THE LOWER END OF THE FRONT WALL PANEL AND DISPOSED BEHIND SAID FRONT WALL PANEL, (C) A TOP FLAP OF PREDETERMINED SHAPE CONNECTED TO THE UPPER EDGE OF THE FRONT WALL PANEL AND FOLDED AROUND THE TOP OF THE CONTAINER TO LIE BEHIND THE REAR WALL PANEL, (D) A PAIR OF SIDE FLAPS CONNECTED TO OPPOSED SIDE EDGES OF THE FRONT WALL PANEL AND FOLDED AROUND THE SIDES OF THE CONTAINER TO LIE BEHIND THE REAR WALL PANEL, (E) SAID SIDE FLAPS BEING SECURED TO SAID REAR WALL PANEL BUT HAVING UPPER END PORTIONS FREE OF SAID REAR WALL PANEL, (F) SAID TOP FLAP HAVING ITS OPPOSITE EDGE EXTREMITIES RECEIVED BETWEEN SAID REAR WALL PANEL AND THE FREE UPPER END PORTIONS OF SAID SIDE FLAPS, WHEREBY THE UPPER END PORTIONS OF SAID SIDE FLAPS ARE IN OVERLAPPING RELATION TO THE EDGE EXTREMITIES OF SAID TOP FLAP, (G) THE REARWARDLY FACING SURFACES OF SAID EDGE EXTREMITIES BEING ADHESIVELY SECURED TO THE FORWARDLY FACING SURFACES OF SAID UPPER END PORTIONS OVER A PREDETERMINED LIMITED AREA OF CONTACT AT EACH SIDE, AND (H) BREAKAWAY FASTENING ELEMENTS ASSOCIATED WITH ONE OF THE ADHESIVELY SECURED SURFACES AT EACH SIDE OF THE CONTAINER AND INCLUDING THE SAID PREDETERMINED LIMITED AREA OF CONTACT AT EACH SIDE, (I) SAID BREAKAWAY FASTENING ELEMENTS BEING SEPARABLE FROM THE RESPECTIVE SURFACES WITH WHICH THEY ARE ASSOCIATED TO EFFECT RELEASE OF SAID TOP FLAP FROM SAID SIDE FLAPS DURING OPENING OF SAID CONTAINER, SAID TOP FLAP RETAINING ITS PREDETERMINED SHAPE AFTER BEING RELEASED FROM SAID SIDE FLAPS (J) SAID BREAKAWAY FASTENING ELEMENTS BEING LOCATED WHOLLY WITHIN THE PERIPHERAL CONFINES OF THE EDGE EXTREMITIES OF SAID TOP FLAP AND THE FREE UPPER PORTIONS OF SAID SIDE FLAPS, (K) EACH OF SAID BREAKAWAY FASTENING ELEMENTS COMPRISES AN AREA OF A FLAP DEFINED BY A CUT SCORE OF CLOSED CONFIGURATION, (L) SAID CUT SCORE HAVING A DEPTH LESS THAN THE THICKNESS OF THE SHEET MATERIAL AND EXTENDING THROUGH AT LEAST THE TOP LAYER OF SAID SHEET MATERIAL, THEREBY ACCOMMODATING SEPARATION OF A PREDETERMINED LAYER OF THE SHEET MATERIAL, CIRCUMSCRIBED BY THE CUT SCORE, FROM THE REMAINDER OF THE FLAP.