US Patent Issued to Packable on April 15 for "Method for top sealing a cardboard tray lined with a plastic foil and cardboard tray therefor" (Dutch Inventor)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,550, issued on April 15, was assigned to Packable B.V. (Netherlands).

"Method for top sealing a cardboard tray lined with a plastic foil and cardboard tray therefor" was invented by Ronald Zwaga (Almelo, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a method for top sealing a cardboard tray lined with a plastic foil. The method includes the steps of providing a cardboard tray having a bottom, upstanding walls arranged along the periphery of the bottom and a horizontal flange arranged along the upper edges of the upstanding walls, wherein the inside of the cardboard tray is lined with a plast foil, which plastic f...