17 SYNTHETIC MOLDED PARTS OF A CHEMICALLY IMPERVIOUS NATURE-NAMELY, POLY-TETRAFLUOROETHYLENE (ALSO KNOWN AS PTFE) FOR THE FORMATION OF PIPES,EXPANSIVE JOINTS AND COUPLINGS FOR TRANSFERRING CHEMICAL ELEMENTS
Trademark Events
Feb 19, 1996
Expired Sec. 9
Dec 22, 1980
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.