Granted Patent
Utility
US 5,666,039 · App. 08/278,743
Charge requesting battery pack and charge-request controlled charger
Inventors:
Shigefumi Odaohara, Arimasa Naitoh, Toshitsugu Mito
Patented Case
View Patent ↗
Granted: Sep 9, 1997
Filed: Jul 22, 1994
Inventors
Shigefumi Odaohara
Arimasa Naitoh
Toshitsugu Mito
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.