Granted Patent
Utility
US 6,159,567 · App. 09/024,123
Polypropylene block copolymers and containers made therefrom
Inventors:
Jean-Paul Charlier, Emmanuel Delaite, Raymond Mikielski
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Feb 17, 1998
Inventors
Jean-Paul Charlier
Emmanuel Delaite
Raymond Mikielski
Assignee (at issue)
Solvay Polyolefins Europe-Belgium (Societe Anonyme)
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.