Granted Patent
Utility
US 5,117,645 · App. 07/704,807
Refrigeration system with saturation sensor
Inventor:
Ralph S. Bryant
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: May 23, 1991
Inventor
Ralph S. Bryant
Assignee (at issue)
Inter-City Products Corporation (USA)
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.