U.S. federal trademark · Serial No. 77894996 · Reg. No. 3906544
Polymer membrane film for use in the further manufacture of filters; polymer membrane film with woven back for use in the further manufacture of filters; and polymer membrane film with nonwoven back for use in the further manufacture of filters
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.