Granted Patent
Utility
US 4,848,579 · App. 07/054,493
Food container
Inventors:
Robert Cregg Barnes, John A. Caporaso, Gerald J. Winter, Jan Karwowski
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: May 27, 1987
Inventors
Robert Cregg Barnes
John A. Caporaso
Gerald J. Winter
Jan Karwowski
Assignee (at issue)
Nabisco Brands, 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.