Granted Patent
Utility
US 4,702,389 · App. 06/414,463
Rigid lid system
Inventors:
Matthew J. Bozinovich, Robert M. Fontana
Patented Case
View Patent ↗
Granted: Oct 27, 1987
Filed: Sep 2, 1982
Inventors
Matthew J. Bozinovich
Robert M. Fontana
Assignee (at issue)
Kraft, 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.