U.S. federal trademark · Serial No. 77469657 · Reg. No. 4305450
Positive displacement rotary pumps having three dimensional engagement surfaces to displace fluid for use in the natural gas industry in natural gas transmission lines; positive displacement rotary compressors having three dimensional engagement surfaces to displace air for use in the natural gas industry in natural gas transmission lines; continuous turbine-like rotational positive displacement rotary gas expanding engines, not for land vehicles, having three dimensional engagement surfaces for use in the natural gas industry
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.