US Patent 11866244 Box defining walls with insulation cavities

A box includes a side wall including an outer side panel; an inner side panel positioned parallel to the outer side panel; and a connecting strip defining a first edge and a second edge, the first edge connected to the outer side panel by a first fold line, the second edge connected to the inner side panel by a second fold line, the connecting strip defining a trapezoidal shape; and a bottom wall coupled to the side wall.