Penngas Trademarks

PENNGAS
Sterilizing Gas
Expired  ·  March 6, 1963  ·  72164066  · 
PENNGAS 2000
sterilizing gas for medical use
Abandoned  ·  May 19, 1994  ·  74526528  · 
PENNGAS-2
sterilizing gas for use in the health care field
Cancelled  ·  October 18, 1993  ·  74448717  ·