branch PHILADELPHIA QUARTZ COMPANY (Illinois (US)) | details | |
branch Philadelphia Quartz Company (Alabama (US)) | details |
PQ GROUP HOLDINGS INC. (Delaware (US)) | details |
Mark Text | Image | Register | NICE classifications | Registration Date | Expiry Date | ||
---|---|---|---|---|---|---|---|
SEAL | United States Patent and Trademark Office | 1 | 1936-11-24 | historic | details | ||
P | United States Patent and Trademark Office | 1 | 1936-11-17 | historic | details | ||
STAR | United States Patent and Trademark Office | 1 | 1936-10-27 | historic | details | ||
TN | United States Patent and Trademark Office | 1 | 1936-09-01 | historic | details | ||
METSO | United States Patent and Trademark Office | 1 | 1932-07-12 | historic | details |