Mark Identification

EFA

Serial Number

78110227

Filing Date

Feb 21, 2002

Registration Date

Oct 28, 2003

Trademark by

TOSOH QUARTZ INC.

Active Trademark

Classification Information

surface finish put on glass, metal and ceramic semiconductor equipment by etching acid and mechanical processing that allows process films to adhere better to the equipment during the manufacture of semiconductors, sold as a component of semiconductor equipment

Electrical and Scientific Apparatus