Granted Patent
Utility
US 6,503,650 · App. 09/607,119
Fuel cell system
Inventors:
Takashi Yasuo, Yasuo Miyake
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jun 29, 2000
Inventors
Takashi Yasuo
Yasuo Miyake
Assignee (at issue)
SANYO ELECTRIC 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.