Granted Patent
Utility
US 4,917,006 · App. 07/197,716
Expansion thermostat for cooking grill
Inventors:
Robert F. Bowen, Kenneth W. Dudley, Joseph C. Maiellano, Jr.
Patented Case
View Patent ↗
Granted: Apr 17, 1990
Filed: May 23, 1988
Inventors
Robert F. Bowen
Kenneth W. Dudley
Joseph C. Maiellano, Jr.
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.