Granted Patent
Utility
US 4,615,356 · App. 06/534,594
Modulating pressure operated pilot relief valve
Inventor:
Raymond G. Reip
Patented Case
View Patent ↗
Granted: Oct 7, 1986
Filed: Sep 22, 1983
Inventor
Raymond G. Reip
Assignee (at issue)
VAPOR CORP.
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.