Granted Patent
Utility
US 6,772,598 · App. 10/427,456
Refrigerant leak detection system
Inventor:
Charlie M. Rinehart
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: May 1, 2003
Inventor
Charlie M. Rinehart
Assignee (at issue)
R.S. Services, 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.