Granted Patent
Utility
US 5,250,166 · App. 07/873,620
Method of recovering palladium by electrolysis and apparatus therefor
Inventors:
Kenji Motojima, Misato Horie, Shin-ichiro Torada
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Apr 22, 1992
Inventors
Kenji Motojima
Misato Horie
Shin-ichiro Torada
Assignees (at issue)
Doryokuro Kakunenryo Kaihatsu Jigyodan
Johoku Chemical Co., 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.