Granted Patent
Utility
US 6,546,913 · App. 09/957,721
Pressure regulator
Inventor:
Daniel Jeremy Hopley
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Sep 21, 2001
Inventor
Daniel Jeremy Hopley
Assignee (at issue)
Delphi Technologies
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.