Granted Patent
Utility
US 6,774,156 · App. 10/332,029
Production of propylene copolymers having improved properties
Inventors:
Guy Debras, Marc Dupire, Jacques Michel
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Sep 2, 2003
Inventors
Guy Debras
Marc Dupire
Jacques Michel
Assignee (at issue)
ATOFINA Research S.A.
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.