Granted Patent
Utility
US 5,947,144 · App. 08/975,837
Diaphragm actuated absolute pressure regulator
Inventors:
Roy A. Mangano, Paul M. Lyons
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Nov 21, 1997
Inventors
Roy A. Mangano
Paul M. Lyons
Assignee (at issue)
Raytheon Company
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.