ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,300, issued on Oct. 28, was assigned to Abatement Technologies Inc. (Suwanee, Ga.).
"Collapsible maintenance cart" was invented by Blair Lawrence Harber (St. Davids, Canada) and Adam Brian Hunninck (Stevensville, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A collapsible maintenance cart includes a lower structure and an upper structure that are movable between a stowed configuration and a working configuration. In the working configuration, the lower structure and the upper structure together define an interior workspace, and the upper structure is movable relative to the lower structure between a raised position and a lowered position. In...