U.S. federal trademark · Serial No. 88950832 · Reg. No. 6457111
non-mechanical metal hoppers that provide aeration capability to fluidize material for pneumatic conveyance for use in connection with vacuum conveying highly fluidize-able materials, such as cement or fly ash; high volume and high capacity metal storage containers for use in connection with cement and fly ash
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.