Granted Patent
Utility
US 5,042,271 · App. 07/468,068
Refrigerant handling system with compressor oil separation
Inventor:
Kenneth W. Manz
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jan 22, 1990
Inventor
Kenneth W. Manz
Assignee (at issue)
Kent-Moore 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.