U.S. federal trademark · Serial No. 77701589 · Reg. No. 3871143
A feature of building products in the nature of wood sub-flooring, namely, notches in the tongue profiles of the sub-flooring that allow water to drain easily from the sub-flooring during construction, and trapped water to drain from floor joists
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.