ALEXANDRIA, Va., July 23 -- United States Patent no. D1,085,606, issued on July 22, was assigned to Unger Marketing International LLC (Bridgeport, Conn.).
"Extendable window cleaning tool" was invented by William Harrington (Newtown, Conn.), Kai Hirsch (Cologne, Germany) and Cristian Siems (Westphalia, Germany).
The patent was filed on Aug. 31, 2022, under Application No. D/851,743.
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