Granted Patent
Utility
US 4,828,613 · App. 07/086,402
Powdery raw material for manufacturing anodes of fuel cells
Inventors:
Koji Hoshino, Fumio Nouda, Seiro Yahata
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Aug 17, 1987
Inventors
Koji Hoshino
Fumio Nouda
Seiro Yahata
Assignees (at issue)
Mitsubishi Kinzoku Kabushiki Kaisha
MITSUBISHI ELECTRIC CORPORATION
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.