U.S. federal trademark · Serial No. 76073368 · Reg. No. 2546297
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
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