Granted Patent
Utility
US 5,575,833 · App. 08/270,206
Refrigerant recycling system and apparatus
Inventor:
Gary E. Griffin
Patented Case
View Patent ↗
Granted: Nov 19, 1996
Filed: Jul 1, 1994
Inventor
Gary E. Griffin
Assignee (at issue)
Parker-Hannifin Corporation
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.