Today in 1958, US Patent 2844299 A was issued, an invention of Theodore F. Hauf and David E. Kessler, assigned to the Pabst Brewing Co., for their “Beverage Cooler Carton.” There’s no Abstract, although in the description it includes this summary:

This invention relates to packages comprising a carton having a number of containers, such as beer cans or the like, packed therein, and the invention refers more particularly to a package of that type which is adapted to be packed with ice for cooling the contents of the containers.