Granted Patent
Utility
US 4,477,706 · App. 06/399,409
Combination microwave/convection and broiling oven
Inventor:
Robert A. Mittelsteadt
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Jul 19, 1982
Inventor
Robert A. Mittelsteadt
Assignee (at issue)
Control Data Corporation
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.