Serial Number
72006236
Owner
Dowell IncorporatedFirst Use Date
May 10, 1955
Filing Date
Apr 12, 1956
SANDLOCK Trademark
Serial Number: 72006236 • Registration: 0651306
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
April 12, 1956
Registration Date
September 3, 1957
First Use Anywhere
May 10, 1955
First Use in Commerce
May 16, 1955
Goods & Services
WELL TREATING SERVICES-NAMELY, INJECTION OF A SUSPENSION OF SOLIDS INTO THE WELL AT A PREDETERMINED POINT TO PACK THE FORMATION AGAINST SLOUGHING AND SHIFTING