Granted Patent
Utility
US 5,334,463 · App. 07/967,270
Hybrid fuel battery system and the operation method thereof
Inventors:
Osamu Tajima, Shingo Sumi, Koji Shindo, Satoshi Yamamoto, Fumiiki Yoneda
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Oct 27, 1992
Inventors
Osamu Tajima
Shingo Sumi
Koji Shindo
Satoshi Yamamoto
Fumiiki Yoneda
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.