SIGMA Trademark
SIGMA is a USPTO trademark filed by MERCK KGAA. Status: Registered.
Trademark Facts
| Mark | SIGMA |
|---|---|
| Serial Number | 72027240 |
| Registration Number | 0658188 |
| Status | Registered |
| Filing Date | 1957-03-29 |
| Registration Date | 1958-02-11 |
| Mark Type | Word |
| Nice Classes | 001 (Chemicals), 006 (Metals) |
| Owner | MERCK KGAA |
| Attorney of Record | William C. Wright |
| Prosecution Events | 33 |
| Latest Event | CHAN on 2021-05-20 |
Goods & Services
LABORATORY RESEARCH CHEMICALS NAMELY, BIOCHEMICAL AND ORGANIC PREPARATIONS AND CLINICAL LABORATORY REAGENTS