Granted Patent
Utility
US 6,167,905 · App. 09/315,321
Diaphragm-type gas pressure regulator with drop-in valve subassembly
Inventors:
Patrick Malloy, George Schweitzer, Timothy J. Stewart
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: May 20, 1999
Inventors
Patrick Malloy
George Schweitzer
Timothy J. Stewart
Assignee (at issue)
American Meter 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.