Granted Patent
Utility
US 4,526,559 · App. 06/579,923
Tension-type belt/pulley system for a continuously variable transmission
Inventor:
Richard L. Smirl
Patented Case
View Patent ↗
Granted: Jul 2, 1985
Filed: Feb 14, 1984
Inventor
Richard L. Smirl
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.