Granted Patent
Utility
US 6,435,213 · App. 09/298,444
Solenoid operated hydraulic control valve
Inventor:
Zheng Lou
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Apr 23, 1999
Inventor
Zheng Lou
Assignee (at issue)
Visteon Global Technologies, 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.