Granted Patent
Utility
US 5,724,221 · App. 08/594,644
Direct contact varistor assembly
Inventor:
Perry Law
Patented Case
View Patent ↗
Granted: Mar 3, 1998
Filed: Feb 2, 1996
Inventor
Perry Law
Assignee (at issue)
EFI Electronics 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.