Granted Patent
Utility
US 4,779,489 · App. 07/023,501
Control system for controlling transmission fluid pressure
Inventor:
William J. Haley
Patented Case
View Patent ↗
Granted: Oct 25, 1988
Filed: Mar 9, 1987
Inventor
William J. Haley
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.