11 ENVIRONMENTAL CONTROL APPARATUS-NAMELY, OIL BURNERS, OIL POWERED WATER HEATERS AND RESERVE HOT WATER STORAGE TANKS, OIL-FIRED CAST IRON AND STEEL BOILERS, WARM AIR FURNACES, FUEL FILTERS FOR OIL BURNERS AND HUMIDIFIERS
Trademark Events
Mar 24, 1997
Expired Sec. 9
May 17, 1982
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.