Mark Identification

AL-994

Serial Number

74144277

Filing Date

Mar 4, 1991

Registration Date

Dec 31, 1991

Trademark by

GTE PRODUCTS CORPORATION

Classification Information

alumina oxide; namely, for use in the manufacture and production of vacuum tube envelopes, radio frequency windows and internal spacers, high voltage insulators, packages for integrated circuit devices and substrates for micro-electronic components, and as an electrical insulator in mechanical applications

Chemicals