Granted Patent
Utility
US 6,479,183 · App. 09/758,925
Base material for a fuel battery
Inventors:
Hiroshi Tsukuda, Toshiro Nishi, Nagao Hisatome, Toru Houjyou
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 11, 2001
Inventors
Hiroshi Tsukuda
Toshiro Nishi
Nagao Hisatome
Toru Houjyou
Assignee (at issue)
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.