Granted Patent
Utility
US 6,202,682 · App. 09/225,104
Pressure regulator with selector control
Inventor:
Dwight N. Johnson
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Jan 4, 1999
Inventor
Dwight N. Johnson
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.