Granted Patent
Utility
US 5,227,597 · App. 07/745,843
Rapid heating, uniform, highly efficient griddle
Inventors:
David M. Dickens, James M. Taylor, Fern Mandelbaum, Frank A. Doljack
Patented Case
View Patent ↗
Granted: Jul 13, 1993
Filed: Aug 16, 1991
Inventors
David M. Dickens
James M. Taylor
Fern Mandelbaum
Frank A. Doljack
Assignee (at issue)
Electric Power Research Institute, Inc.
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.