U.S. federal trademark · Serial No. 85561729 · Reg. No. 4225291
Non-metallic, polymeric seals, gaskets, o-rings, spacers, and inserts having enhanced porosity or other physical characteristics for providing pressure relief in sealed containers by permitting one-way transmission of gases and water vapor
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.