Granted Patent
Utility
US 5,631,539 · App. 08/328,250
Process and apparatus for charging lithium cells or the like
Inventor:
Paul Beard
Patented Case
View Patent ↗
Granted: May 20, 1997
Filed: Oct 24, 1994
Inventor
Paul Beard
Assignee (at issue)
Norand 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.