2 trademarks were found for owners matching the name HYDRIL CORPORATION OF CALIFORNIA.
#Classstatus
1 S:71678535
M:HYDRIL

O:HYDRIL CORPORATION OF CALIFORNIA
23 Dead
2 S:71662540
M:HYDRIL

O:HYDRIL COMPANY, HYDRIL CORPORATION OF CALIFORNIA
13 Registered
Trademark Alertz updated from USPTO on 2030-01-24