DOUBLE-BUBBLER Trademark
Serial Number: 75467983 • Registration: 2266763
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
April 14, 1998
Registration Date
August 3, 1999
First Use Anywhere
September 10, 1997
First Use in Commerce
September 10, 1997
Published for Opposition
May 11, 1999
Cancellation Date
March 7, 2010
Goods & Services
water-column gas scrubber for water-scrubbing of hydrogen or oxygen gas from an alkaline electrolyzer