Granted Patent
Utility
US 4,932,795 · App. 07/270,767
Electrically conductive plastic bushings for marine propulsion devices
Inventor:
Douglas B. Guinn
Patented Case
View Patent ↗
Granted: Jun 12, 1990
Filed: Nov 10, 1988
Inventor
Douglas B. Guinn
Assignee (at issue)
Outboard Marine 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.