Mark Identification

FLA

Serial Number

72035758

Filing Date

Aug 19, 1957

Registration Date

Oct 28, 1958

Trademark by

DOW CHEMICAL COMPANY THE

Classification Information

PETROLEUM DERIVATIVE IN POWDERED FORM FOR INCORPORATING INTO FLUIDS USED IN HYDRAULICALLY FRACTURING OIL PRODUCING EARTH FORMATIONS, WHICH MATERIAL DECREASES THE PENETRABILITY OF THE FRACTURING FLUID INTO THE EARTH FORMATION

Chemicals

EMTALL