Granted Patent
Utility
US 6,157,166 · App. 09/300,808
Battery switching circuit and a computer system having same
Inventors:
Shigefumi Odaohhara, Akira Fukushima, Masaki Kobayashi
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Apr 27, 1999
Inventors
Shigefumi Odaohhara
Akira Fukushima
Masaki Kobayashi
Assignee (at issue)
International Business Machines 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.