ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,919, issued on Jan. 27, was assigned to Fortress Iron LP (Garland, Texas).
"Reinforced adjustable stair tray" was invented by Kevin Troy Burt (Dallas) and Michael J. Sawka (Garland, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable stair tray assembly includes a first angle bar, a plurality of track channels coupled to the first angle bar with each defining a cavity. A plurality of U-channels is coupled to a second angle bar, and each one of the plurality of U-channels is received in a respective cavity of each of the plurality of track channels. The second angle bar comprises a horizontal wall, a vertical wall extending from the ho...