Granted Patent
Utility
US 5,652,503 · App. 08/570,853
Control system for even lighting of surface elements in a glass cook top
Inventors:
Frederick M. Urban, Robert J. Alvord
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Dec 12, 1995
Inventors
Frederick M. Urban
Robert J. Alvord
Assignee (at issue)
Eaton 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.