U.S. federal trademark · Serial No. 88401574
Educational toy construction sets featuring translucent blocks which light up when plugged into an electrical power supply; toy construction sets which light up based upon at least one block containing its own electrical power supply; mobile buildable and interchangeable lighted construction toys; toys for building model vehicles and other shapes or forms with an electric supply and a plurality of translucent blocks which light up when attached to an electrical supply
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.