Granted Patent
Utility
US 6,209,566 · App. 09/320,068
Hydraulic control systems
Inventor:
William Burdock
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: May 26, 1999
Inventor
William Burdock
Assignee (at issue)
Rover Group Limited
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.