Granted Patent
Utility
US 5,160,852 · App. 07/522,652
Power adapter
Inventors:
Joseph T. Charles, Michael Reinhart
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: May 11, 1990
Inventors
Joseph T. Charles
Michael Reinhart
Assignee (at issue)
Charles Industries, Ltd.
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.