Granted Patent
Utility
US 4,819,442 · App. 07/159,883
Refrigerator system, control device therefor and methods of making and operating the same
Inventors:
Roger P. Sepso, Charles J. Everett
Patented Case
View Patent ↗
Granted: Apr 11, 1989
Filed: Feb 24, 1988
Inventors
Roger P. Sepso
Charles J. Everett
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.