Granted Patent
Utility
US 4,589,303 · App. 06/643,938
Continuously variable transmission with synchronous shift
Inventor:
Richard W. Roberts
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: Aug 24, 1984
Inventor
Richard W. Roberts
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.