Granted Patent
Utility
US 4,863,784 · App. 07/054,918
Multilayer film containing very low density polyethylene
Inventors:
Stanley Lustig, Jeffrey M. Schuetz
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: May 28, 1987
Inventors
Stanley Lustig
Jeffrey M. Schuetz
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.