Granted Patent
Utility
US 4,420,668 · App. 06/277,459
Constant power microwave oven
Inventors:
Gerald L. Larson, Robert Lee Ellis, Daniel A. Baker
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: Jun 25, 1981
Inventors
Gerald L. Larson
Robert Lee Ellis
Daniel A. Baker
Assignee (at issue)
Litton Systems, 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.