DURAFUSED
Filed: May 28, 1963
Heat Exchangers Employing Metal Panels and the Like Coated to Resist the Effects of Heat and Corrosion
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 72169853
POWER GUARD
Filed: December 7, 1979
Air Conditioners for Domestic Use
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 73241855
TIGHTFIST
Filed: December 17, 1979
Gas Furnaces
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 73243197
ENERGY MARSHAL
Filed: December 28, 1979
Gas Furnaces
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 73244382
LONGLIFE
Filed: November 16, 1987
WARRANTY SERVICES
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 73695596
LONGLIFE
Filed: September 20, 1988
HEAT EXCHANGERS FOR FURNACES
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 73753154
ZONEAIRE
Filed: November 22, 1989
PROMOTIONAL AND ADVERTISING SERVICES FOR AIR CONDITIONING AND HEATING EQUIPMENT
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 74004511
FLEX-DRIVE
Filed: December 21, 1989
AIR CONDITIONERS
Owned by: HEIL-QUAKER CORPORATION
Serial Number: 74013111
