Granted Patent
Utility
US 5,505,597 · App. 08/337,966
Pressure tolerant balanced motor valve
Inventor:
Hollis White
Patented Case
View Patent ↗
Granted: Apr 9, 1996
Filed: Nov 14, 1994
Inventor
Hollis White
Assignee (at issue)
White Hydraulics, 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.