Serial Number
75203787
Owner
PROTON ENERGY SYSTEMS, INC.Attorney
George A. Pelletier, JrFirst Use Date
Jan 29, 1997
Filing Date
Nov 25, 1996
HOGEN Trademark
Serial Number: 75203787 • Registration: 2241035
Trademark Classes
Owner Contact Info
10 Technology Drive
Wallingford, CT 06492
Entity Type: 03
Legal Representation
Trademark Details
Filing Date
November 25, 1996
Registration Date
April 20, 1999
First Use Anywhere
January 29, 1997
First Use in Commerce
July 29, 1997
Published for Opposition
April 14, 1998
Cancellation Date
October 22, 2021
Goods & Services
electrolytic systems, namely, fuel cells and electrolyzers for energy conversion