Granted Patent
Utility
US 5,369,959 · App. 08/078,044
Non-condensable purge control for refrigerant recycling system
Inventors:
Dean P. Pfefferle, Roger L. Husarik, J. Steven Martin
Patented Case
View Patent ↗
Granted: Dec 6, 1994
Filed: Jun 18, 1993
Inventors
Dean P. Pfefferle
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.