Granted Patent
Utility
US 4,444,216 · App. 06/339,554
Pressure reducing and regulating valve
Inventor:
Ronald L. Loup
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Jan 15, 1982
Inventor
Ronald L. Loup
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.