U.S. federal trademark · Serial No. 88586843 · Reg. No. 6017826
Heat exchanger, other than a part in a machine, in which heated process fluids flow through a serpentine closed circuit of tubes past which ambient air is forced at high velocity for the purpose of removing heat from the circulating fluid
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.