Granted Patent
Utility
US 5,412,955 · App. 08/293,082
Non-condensable purge control for refrigerant recycling system
Inventors:
Roger L. Husarik, J. Steven Martin
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Aug 19, 1994
Inventors
Roger L. Husarik
J. Steven Martin
Assignee (at issue)
Snap-on Incorporated
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.