1 SEMI-CONDUCTING LIGHT-EMITTING MATERIALS-NAMELY, SINGLE CRYSTALS OF GALLIUM PHOSPHIDE AND GALLIUM PHOSPHIDE WAFERS AND CHIPS
9 SINGLE LIGHT-EMITTING DIODES AND SEMI-CONDUCTING LIGHT-EMITTING DISPLAYS FOR ELECTRONIC EQUIPMENT
ON OR ABOUT AUG. 22, 1972, IN A MODIFIED FORM ON OR ABOUT AUG. 22, 1972, IN A MODIFIED FORM ON OR ABOUT NOV. 26, 1972, IN A MODIFIED FORM ON OR ABOUT NOV. 26, 1972, IN A MODIFIED FORM EXCITON
Trademark Events
Feb 12, 1996
Expired Sec. 9
Jun 29, 1981
Registered - Sec. 8 (6-Yr) Accepted & Sec. 15 Ack.