Granted Patent
Utility
US 4,430,541 · App. 06/447,359
Combination microwave gas convection oven
Inventor:
William Day
Patented Case
View Patent ↗
Granted: Feb 7, 1984
Filed: Dec 6, 1982
Inventor
William Day
Assignee (at issue)
Raytheon Company
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.