Granted Patent
Utility
US 5,635,261 · App. 07/419,061
Thermoplastic film incorporating high melt index resins
Inventors:
Paul N. Georgelos, Stanley Lustig
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Oct 10, 1989
Inventors
Paul N. Georgelos
Stanley Lustig
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.