Granted Patent
Utility
US 4,748,862 · App. 07/026,615
Starter drive having a contaminant collecting bushing
Inventor:
Robert E. Johnston
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: Mar 17, 1987
Inventor
Robert E. Johnston
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.