Granted Patent
Utility
US 5,367,886 · App. 08/100,424
Refrigerant handling system with air purge and system clearing capabilities
Inventors:
Kenneth W. Manz, Christopher M. Powers
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Aug 2, 1993
Inventors
Kenneth W. Manz
Christopher M. Powers
Assignee (at issue)
SPX 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.