Granted Patent
Utility
US 4,835,981 · App. 07/175,983
Air conditioner with improved thermostating operation
Inventor:
Robert K. Rinholen
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Mar 31, 1988
Inventor
Robert K. Rinholen
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.