Granted Patent
Utility
US 6,703,840 · App. 10/085,984
Methods and apparatuses for automatic process control for biasing and testing heated electrode refrigerant sensors
Inventor:
Dennis Cardinale
Patented Case
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Granted: Mar 9, 2004
Filed: Feb 28, 2002
Inventor
Dennis Cardinale
Assignee (at issue)
Advanced Test Products, Inc.
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.