Granted Patent
Utility
US 5,663,605 · App. 08/433,187
Rotating electrical machine with electromagnetic and permanent magnet excitation
Inventors:
Paul Michael Evans, Roy David Schultz
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: May 3, 1995
Inventors
Paul Michael Evans
Roy David Schultz
Assignee (at issue)
Ford Motor Company
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.