Granted Patent
Utility
US 5,965,009 · App. 08/839,708
Method of producing acid water and electrolytic cell therefor
Inventors:
Takayuki Shimamune, Masashi Tanaka, Yoshinori Nishiki
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Apr 15, 1997
Inventors
Takayuki Shimamune
Masashi Tanaka
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.