Granted Patent
Utility
US 4,530,371 · App. 06/546,099
Control of fluid pressure circuits
Inventor:
Ronnie A. Arav
Patented Case
View Patent ↗
Granted: Jul 23, 1985
Filed: Oct 27, 1983
Inventor
Ronnie A. Arav
Assignee (at issue)
Beloit 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.