Granted Patent
Utility
US 5,568,023 · App. 08/246,230
Electric power train control
Inventors:
William Grayer, William R. Olson, Harold A. Rosen
Patented Case
View Patent ↗
Granted: Oct 22, 1996
Filed: May 18, 1994
Inventors
William Grayer
William R. Olson
Harold A. Rosen
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.