Granted Patent
Utility
US 6,180,274 · App. 09/156,388
Cell unit for fuel cells
Inventors:
Yasunori Yoshimoto, Takashi Yasuo, Yasuo Miyake, Koji Nishio
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Sep 18, 1998
Inventors
Yasunori Yoshimoto
Takashi Yasuo
Yasuo Miyake
Koji Nishio
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.