Granted Patent
Utility
US 4,792,714 · App. 07/151,226
Commutator with non-uniform bars and equally spaced hooks
Inventor:
Donald C. Schlieter
Patented Case
View Patent ↗
Granted: Dec 20, 1988
Filed: Feb 1, 1988
Inventor
Donald C. Schlieter
Assignee (at issue)
General Motors LLC
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.