U.S. federal trademark · Serial No. 87225278 · Reg. No. 5471598
Toy building blocks, namely, extra large building blocks and corresponding and proportional small and mid-size blocks shaped in rectangular and square shapes that have protruding studs that provide an interlocking connection among such blocks, as well as flat top blocks that can be placed on the extra large rectangular and square blocks for a smooth finish, that together allow others to build structures such as forts, houses or any other similar three dimensional structures
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.