ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,045, issued on Dec. 23.
"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 a cyclone chamber. The cyclone chamber air inlet has a downstream end that is located in the cyclone chamber. The downstream end comprises an inlet air flow path comprising an inlet sidewall, an inlet end wall and an outlet port provided in the inlet sidewall, wherein at least a portion of each of the inlet sidewall and the inlet end wall have inner surfaces that are curved."
The patent was filed on Aug. 31, 2022, under Application No. 17/900,088.
*For furthe...