Granted Patent
Utility
US 6,437,541 · App. 10/037,645
Battery state monitoring circuit and battery device
Inventor:
Atsushi Sakurai
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Jan 3, 2002
Inventor
Atsushi Sakurai
Assignee (at issue)
SEIKO INSTRUMENTS INC.
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.