ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,974, issued on Sept. 9, was assigned to Schoeller Allibert GmbH (Schwerin, Germany).
"Spacer for stacking open containers" was invented by Edwin Klaassen (Markelo, Netherlands) and Erik Brinkers (Zwolle, Netherlands).
According to the abstract* released by the U.S. Patent & Trademark Office: "A spacer for stacking first and second containers on each other. The spacer includes an elongated base body having a first support plate with a first support surface and a second support plate with a second support surface. Plunger portions project from the base body in opposite directions. The plunger portions are designed to plunge into respective recesses inside wall rims of the first an...