Granted Patent
Utility
US 5,549,943 · App. 07/948,552
Heat shrinkable nylon food casing with a polyolefin core layer
Inventor:
Stephen J. Vicik
Patented Case
View Patent ↗
Granted: Aug 27, 1996
Filed: Sep 23, 1992
Inventor
Stephen J. Vicik
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.