ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,884, issued on Sept. 1, was assigned to Omachron Intellectual Property Inc. (Hampton, Canada).
"Dust and allergen control for surface cleaning apparatus" was invented by Wayne Ernest Conrad (Hampton, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A surface cleaning apparatus comprises an air flow path extending from a dirty air inlet to a clean air outlet with an air treatment member positioned in the air flow path. The air treatment member comprises a dirt collection region which has an openable door. A pre-motor filter is positioned downstream of the chamber and upstream of the suction motor and a suction motor is provided in the air flow p...