Iso-Barrier Trademark Details

This mark is dead with a status of Abandoned-Failure to Respond or Late Response. The last case file activity for this mark occured 25 years ago on Tuesday, October 13, 1998, according to the United State Patent & Trademark Office
Word Mark Iso-Barrier
Status Dead 602 — Abandoned-Failure to Respond or Late Response

Current Owner

Keystone International Holdings Corp. of Houston, TX

View all trademarks for Keystone International Holdings Corp.
Other Trademarks for Keystone International Holdings Corp.
Serial Number 75277255
Status Date Tuesday, October 13, 1998
Filing Date Tuesday, October 13, 1998
Attorney C James Bushman

Correspondent

C JAMES BUSHMAN
BROWNING BUSHMAN
5718 WESTHEIMER STE 1800
HOUSTON TX 77057

Case File Statements

Goods & Services Pilot Operated Pressure Relief Valve System for Use in a Process Having a Contaminated Process Fluid Wherein the Valve Critical Internals Are Subjected Only to Clean, Non-Freezing Liquids at Operating Temperatures
Pseudo Mark Isolation Barriers

Classifications

International Class Codes
007 — Class 7 includes mainly machines, machine tools, motors and engines.
U.S. Class Codes 013, 019, 021, 023, 031, 034, 035
Status 8 — Abandoned
Status Date Wednesday, August 4, 1999
Primary Code 007

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