Granted Patent
Utility
US 4,585,030 · App. 06/597,303
Proportional hydraulic solenoid controller
Inventor:
Clarence D. Fox
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Apr 6, 1984
Inventor
Clarence D. Fox
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.