Granted Patent
Utility
US 6,294,292 · App. 09/353,136
Secondary power source
Inventors:
Manabu Tsushima, Takeshi Morimoto, Yong Che
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jul 14, 1999
Inventors
Manabu Tsushima
Takeshi Morimoto
Yong Che
Assignee (at issue)
ASAHI GLASS 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.