Granted Patent
Utility
US 4,889,751 · App. 07/117,863
Liquid smoke impregnated peelable fibrous food casing article
Inventors:
James R. Hansen, Myron D. Nicholson, Jeffrey Brian Sherry
Patented Case
View Patent ↗
Granted: Dec 26, 1989
Filed: Nov 9, 1987
Inventors
James R. Hansen
Myron D. Nicholson
Jeffrey Brian Sherry
Assignee (at issue)
Viskase Companies, 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.