Granted Patent
Utility
US 5,491,622 · App. 08/178,988
Power converter with emergency operating mode for three phase induction motors
Inventor:
Paul F. Carosa
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Jan 7, 1994
Inventor
Paul F. Carosa
Assignee (at issue)
DELCO 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.