Granted Patent
Utility
US 4,249,067 · App. 06/002,894
Toy electric convection oven
Inventor:
Charles A. Cummings
Patented Case
View Patent ↗
Granted: Feb 3, 1981
Filed: Jan 12, 1979
Inventor
Charles A. Cummings
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.