Granted Patent
Utility
US 4,475,416 · App. 06/402,408
Continuously variable transmission down shift control
Inventor:
Herbert N. Underwood
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Jul 27, 1982
Inventor
Herbert N. Underwood
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.