Granted Patent
Utility
US 5,100,562 · App. 07/621,276
Refrigerant recycling system
Inventor:
Robert H. Proctor
Patented Case
View Patent ↗
Granted: Mar 31, 1992
Filed: Nov 30, 1990
Inventor
Robert H. Proctor
Assignee (at issue)
M/E Automotive 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.