A Z
Mark Identification

A Z

Serial Number

77473989

Filing Date

May 14, 2008

Registration Date

Jan 20, 2009

Trademark by

MERCK KGAA

Active Trademark

Classification Information

Resist, namely, acid or alkali-resistant nonconducting coating used to protect desired portions of a circuit pattern from the action of the etchant in the manufacture of semiconductor devices

Chemicals