US Patent 11370576 Straddle flange top seal punnet

A container comprising a bottom panel defining a base of the container, and a plurality of side walls extending from the bottom panel and defining an interior area of the container, wherein the plurality of side walls include at least opposing first and second side walls. A first flange structure is connected to each of the first and second side walls along respective fold lines at an upper edge of the container. Each first flange structure straddles a respective side wall and comprises an inner flange portion extending over the interior area of the container, and an outer flange portion, coplanar with the inner flange portion, extending away from the interior of the container, wherein the outer flange portion is defined by one or more tabs.