Granted Patent
Utility
US 4,818,551 · App. 07/183,214
Method of making a liquid smoke impregnated shirred casing stick
Inventors:
Alan David Stall, Keith A. Watts
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Apr 19, 1988
Inventors
Alan David Stall
Keith A. Watts
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.