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The US trademark RHEO-CLAY was filed as Word mark on 07/19/2007 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 01/29/2008.
The current status of the mark is "REGISTERED AND RENEWED".
| Trademark form | Word mark |
| File reference | 77233600 |
| Register number | 3375859 |
| Application date | July 19, 2007 |
| Publication date | November 13, 2007 |
| Entry date | January 29, 2008 |
Trademark owner
P.O. BOX 4740
772104740 HOUSTON
US
772104740 HOUSTON
US
Trademark representatives
goods and services
1
organophilic clay-based viscosifier for use in invert emulsion drilling fluids to provide a constant rheological profile and non-progressive gel strengths
ID: 1377233600