31 WATER PURIFIERS AND FILTERS; THE WATER PURIFIERS ARE APPARATUS WHICH UTILIZE A REVERSE OSMOSIS PROCESS WHEREIN A CONCENTRATED SOLUTION IS FORCED UNDER PRESSURE THROUGH A SEMI-PERMEABLE MEMBRANE TO REMOVE CERTAIN MOLECULES THEREFROM
Trademark Events
Jul 26, 1993
Expired Sec. 9
Feb 6, 1978
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.