Granted Patent
Utility
US 6,385,986 · App. 09/989,147
Refrigerant charging hose assembly
Inventors:
James E. Ferris, William J. Quest
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: Nov 19, 2001
Inventors
James E. Ferris
William J. Quest
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.