Granted Patent
Utility
US 6,816,352 · App. 10/077,160
Abnormal voltage protection circuit
Inventor:
Michael L. Hoopes
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 15, 2002
Inventor
Michael L. Hoopes
Assignee (at issue)
Panamax 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.