3 trademarks were found for owners matching the name OIL HEAT INSTITUTE OF WASHINGTON.
#Classstatus
1 S:72204699
M:DIAMOND KEY
O:OIL HEAT INSTITUTE OF WASHINGTON
101 Dead
2 S:72236538
M:OIL HEATS BEST

O:OIL HEAT INSTITUTE OF WASHINGTON
200 Dead
Trademark Alertz updated from USPTO on 2030-01-24