Granted Patent
Utility
US 5,218,286 · App. 07/760,764
Multichannel battery charger
Inventor:
Guy J. VanDunk
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Sep 16, 1991
Inventor
Guy J. VanDunk
Assignee (at issue)
Monarch Marking Systems, 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.