Granted Patent
Utility
US 5,756,587 · App. 08/704,509
Propylene polymers and process for the production thereof
Inventors:
Serge Bettonville, Philippe De Rop, Claude Franquinet
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Sep 12, 1996
Inventors
Serge Bettonville
Philippe De Rop
Claude Franquinet
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.