ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,704, issued on July 28, was assigned to Dart Container Corp. (Mason, Mich.).
"Paperboard container with sidewall features and method of manufacturing thereof" was invented by Robert William Rau (Dewitt, Mich.) and Yogesh Manilal Shah (Wheeling, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A disposable paperboard container, and method for manufacturing the same, formed into a geometric shape having a bottom wall with a bottom transition segment about the periphery of the bottom wall leading to an upstanding sidewall extending to an upper rim, wherein an undulation of paperboard resides along the peripheral area of the lower portion of the side...