Granted Patent
Utility
US 4,435,638 · App. 06/294,582
Electric range surface element
Inventors:
Donald J. Simon, Thomas R. Field
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Aug 20, 1981
Inventors
Donald J. Simon
Thomas R. Field
Assignee (at issue)
Jenn-Air 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.