Granted Patent
Utility
US 5,296,684 · App. 07/650,489
Device for detecting a cooking vessel positioned in a heating zone of a cooker or heater
Inventors:
Willi Essig, Ivo Russ
Patented Case
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Granted: Mar 22, 1994
Filed: Feb 5, 1991
Inventors
Willi Essig
Ivo Russ
Assignee (at issue)
E.G.O. Elektro-Gerate Blanc u. Fischer
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.