Granted Patent
Utility
US 5,590,684 · App. 08/523,051
Dual pilot manifold assembly for a safety relief valve
Inventors:
Jack B. Alberts, Michael D. McNeely
Patented Case
View Patent ↗
Granted: Jan 7, 1997
Filed: Sep 1, 1995
Inventors
Jack B. Alberts
Michael D. McNeely
Assignee (at issue)
Keystone International
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.