U.S. federal trademark · Serial No. 78823847
Namely-- Using the name "L-Grout" to specify a certain type of Vinyl floor tile and composition vinyl tile; The "L- Grout" is our descriptive name, representing a square tile with two exterior grout lines which are adjacent/ perpendicular to each other; hence the grout lines form the shape of an "L;"
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.