Granted Patent
Utility
US 5,733,430 · App. 08/626,924
Gas diffusion electrode and electrolytic method using it
Inventors:
Takahiro Ashida, Takayuki Shimamune, Yoshinori Nishiki
Patented Case
View Patent ↗
Granted: Mar 31, 1998
Filed: Apr 3, 1996
Inventors
Takahiro Ashida
Takayuki Shimamune
Yoshinori Nishiki
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.