Granted Patent
Utility
US 4,569,670 · App. 06/615,630
Variable pulley accessory drive
Inventor:
Arthur M. McIntosh
Patented Case
View Patent ↗
Granted: Feb 11, 1986
Filed: May 31, 1984
Inventor
Arthur M. McIntosh
Assignee (at issue)
BorgWarner 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.