Granted Patent
Utility
US 6,489,019 · App. 09/454,869
High surface gloss, co-extruded sheets from olefin polymer materials
Inventors:
Bakhtiar Alam Shah, Jay S. Rosenthal
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Dec 3, 1999
Inventors
Bakhtiar Alam Shah
Jay S. Rosenthal
Assignee (at issue)
Basell Poliolefine Italia S.r.l.
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.