Granted Patent
Utility
US 5,212,360 · App. 07/577,227
Line voltage sensing for microwave ovens
Inventor:
Roger W. Carlson
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Sep 4, 1990
Inventor
Roger W. Carlson
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.