Granted Patent
Utility
US 5,909,103 · App. 08/899,001
Safety switch for lithium ion battery
Inventor:
Richard K. Williams
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Jul 24, 1997
Inventor
Richard K. Williams
Assignee (at issue)
SILICONIX INCORPORATED
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.