Granted Patent
Utility
US 6,098,403 · App. 09/270,692
Hydraulic control valve system with pressure compensator
Inventor:
Raud A. Wilke
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Mar 17, 1999
Inventor
Raud A. Wilke
Assignee (at issue)
HUSCO International, 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.