Granted Patent
Utility
US 5,676,808 · App. 08/636,148
Electrolytic cell using gas diffusion electrode
Inventors:
Yoshinori Nishiki, Takahiro Ashida, Takayuki Shimamune, Yasuo Nakajima
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Apr 22, 1996
Inventors
Yoshinori Nishiki
Takahiro Ashida
Takayuki Shimamune
Yasuo Nakajima
Assignee (at issue)
PERMELEC ELECTRODE LTD.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.