Mark Text | Image | Register | NICE classifications | Registration Date | Expiry Date | ||
---|---|---|---|---|---|---|---|
PORTOVOID | United States Patent and Trademark Office | 11 | 1975-12-09 | historic | details | ||
AC | United States Patent and Trademark Office | 9, 20, 11 | 1968-12-24 | historic | details | ||
MICROVOID | United States Patent and Trademark Office | 11 | 1967-11-07 | historic | details |