Granted Patent
Utility
US 5,451,364 · App. 08/179,418
Cellulose food casing manufacturing method
Inventors:
Paul Edmund DuCharme, Jr., Edward Makoto Kajiwara, Norman A. Portnoy
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jan 10, 1994
Inventors
Paul Edmund DuCharme, Jr.
Edward Makoto Kajiwara
Norman A. Portnoy
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.