Granted Patent
Utility
US 4,831,226 · App. 07/153,752
Control system with hidden reprogramming switch
Inventors:
John D. Robeson, Roger W. Carlson, Rex E. Fritts
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Feb 8, 1988
Inventors
John D. Robeson
Roger W. Carlson
Rex E. Fritts
Assignee (at issue)
Amana Refrigeration, 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.