Granted Patent
Utility
US 5,437,406 · App. 08/085,485
Semi-rigid cereal carton
Inventors:
Robert L. Gordon, Katherine A. Swenson, David E. Stier, Teresa A. Bronk
Patented Case
View Patent ↗
Granted: Aug 1, 1995
Filed: Jul 2, 1993
Inventors
Robert L. Gordon
Katherine A. Swenson
David E. Stier
Teresa A. Bronk
Assignee (at issue)
INTERNATIONAL PAPER COMPANY
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.