Granted Patent
Utility
US 4,649,961 · App. 06/283,244
High coherency shirred casings
Inventors:
Merlan E. McAllister, Robert W. Snedeker
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Jul 17, 1981
Inventors
Merlan E. McAllister
Robert W. Snedeker
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.