Granted Patent
Utility
US 4,740,400 · App. 06/845,166
Tinted heat-shrinkable multilayer films comprising a vinylidene chloride-vinyl chloride copolymer
Inventors:
Stanley Lustig, Stephen J. Vicik, John A. Ransford
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Mar 27, 1986
Inventors
Stanley Lustig
Stephen J. Vicik
John A. Ransford
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.