87627980
Sep 29, 2017
Aug 30, 2022
Active Trademark
Energy storage devices for power grids and power plants, namely, gravity-based utility-scale power storage facilities consisting of cranes, generators, and cement blocks
MachineryElectricity storage devices for power grids and power plants, namely, gravity-based utility-scale power storage facilities consisting of cranes, generators, and cement blocks
Electrical and Scientific Apparatus