Granted Patent
Utility
US 5,166,487 · App. 07/452,612
Cooking oven with convection and microwave heating
Inventors:
James R. Hurley, Timothy J. Norman, Paul Childs
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Dec 15, 1989
Inventors
James R. Hurley
Timothy J. Norman
Paul Childs
Assignee (at issue)
Tecogen 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.