Granted Patent
Utility
US 5,611,518 · App. 08/490,711
Control device for a hydraulic slide valve
Inventor:
Christian Menard
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Jun 15, 1995
Inventor
Christian Menard
Assignee (at issue)
Thomson-CSF
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.