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The US trademark RHEO-PLOT was filed as Word mark on 10/04/1972 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 01/01/1974.
The current status of the mark is "EXPIRED".
| Trademark form | Word mark |
| File reference | 72437455 |
| Register number | 975963 |
| Application date | October 4, 1972 |
| Entry date | January 1, 1974 |
Trademark owner
3920 ESSEX LANE HOUSTON, TEX., ASSIGNEE OF RICHARD E. WALKER BEAUMONT, TEX.
goods and services
16
CHART OR GRAPH USED TO PLOT RHEOLOGY OF OIL WELL DRILLING FLUIDS
ID: 1372437455