Granted Patent
Utility
US 4,331,994 · App. 06/079,853
Shootthrough fault protection system for a voltage source transistor inverter
Inventor:
William F. Wirth
Patented Case
View Patent ↗
Granted: May 25, 1982
Filed: Sep 28, 1979
Inventor
William F. Wirth
Assignee (at issue)
BorgWarner 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.