Granted Patent
Utility
US 5,679,017 · App. 08/483,679
Universal battery charger
Inventor:
Richard B. Smith
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Jun 7, 1995
Inventor
Richard B. Smith
Assignee (at issue)
Duracell 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.