US Patent 11679925 Modular box assembly

A method of collapsing a box from an expanded configuration to a collapsed configuration is disclosed. The method of collapsing a box from an expanded configuration to a collapsed configuration, the box comprising a side panel and a bottom panel attached to the side panel, can comprise bending a center fold line of the side panel; unbending a length fold line defined between the side panel and the bottom panel; bending a first corner fold line that extends from a bottom panel corner of the bottom panel to an edge fold line of a center subpanel of the bottom panel; and bending a second corner fold line that extends from the bottom panel corner to a longitudinal center line that bisects a bottom panel edge of the bottom panel.