Granted Patent
Utility
US 5,517,825 · App. 08/316,260
Refrigerant handling system and method with air purge and system clearing capabilities
Inventors:
Kenneth W. Manz, Sandra Sheehe
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Sep 30, 1994
Inventors
Kenneth W. Manz
Sandra Sheehe
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.