Granted Patent
Utility
US 4,862,770 · App. 07/072,485
Two-speed alternator drive
Inventor:
Franklin R. Smith
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Jul 13, 1987
Inventor
Franklin R. Smith
Assignee (at issue)
Borg-Warner Automotive, Inc.
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.