Granted Patent
Utility
US 6,004,599 · App. 09/131,836
Bag for packaging bone-in cuts of meat
Inventors:
Roger Douglas Bert, John Stephen Siwinski
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Aug 10, 1998
Inventors
Roger Douglas Bert
John Stephen Siwinski
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.