DURADIAMOND Trademark
DURADIAMOND is a USPTO trademark filed by GRANT PRIDECO, INC.. Status: Registered.
Trademark Facts
| Mark | DURADIAMOND |
|---|---|
| Serial Number | 75319307 |
| Registration Number | 2189219 |
| Status | Registered |
| Filing Date | 1997-07-03 |
| Registration Date | 1998-09-15 |
| Mark Type | Word |
| Nice Classes | 007 (Machinery) |
| Owner | GRANT PRIDECO, INC. |
| Attorney of Record | Gregory L. Maag |
| Prosecution Events | 31 |
| Latest Event | ASGN on 2026-04-15 |
Goods & Services
downhole drilling tools, namely, drill bits and core bits