Granted Patent
Utility
US 5,046,477 · App. 07/635,080
Gas cook-top with glass top
Inventors:
James Bennett, John D. Robeson, Ralph E. Biddle
Patented Case
View Patent ↗
Granted: Sep 10, 1991
Filed: Dec 28, 1990
Inventors
James Bennett
John D. Robeson
Ralph E. Biddle
Assignee (at issue)
Amana Refrigeration, 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.