Granted Patent
Utility
US 5,613,516 · App. 08/576,709
Combination hydraulic pressure regulator and pressure switch
Inventor:
Michael T. Landrum
Patented Case
View Patent ↗
Granted: Mar 25, 1997
Filed: Dec 21, 1995
Inventor
Michael T. Landrum
Assignee (at issue)
Power Team Division of SPX Corporation
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.