Granted Patent
Utility
US 6,472,640 · App. 10/058,323
Preheat system for convection cooking appliance
Inventors:
John Scott Brown, Marcus Moore, Robert Z. Whipple, Jr.
Patented Case
View Patent ↗
Granted: Oct 29, 2002
Filed: Jan 30, 2002
Inventors
John Scott Brown
Marcus Moore
Robert Z. Whipple, Jr.
Assignee (at issue)
Maytag 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.