Granted Patent
Utility
US 4,565,349 · App. 06/591,369
Fail safe hydraulic piloted pressure reducing and regulating valve
Inventor:
Jerry B. Tomlin
Patented Case
View Patent ↗
Granted: Jan 21, 1986
Filed: Mar 20, 1984
Inventor
Jerry B. Tomlin
Assignee (at issue)
Koomey, 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.