US Patent 7121453 Carton with corner post construction

A carton, fabricated preferably from corrugated paperboard material, including a bottom panel, two side panels, two end panels, a pair of top panels for closing the carton, locking flaps extending from the ends of the top panels and having tabs receivable in the end panels, and further including a plurality of corner support structures, formed from panels emanating from end edges of the end panels.