Granted Patent
Utility
US 6,020,437 · App. 08/679,390
Propylene polymer and process for obtaining it
Inventors:
Raphael Mestanza, Didier Graebling, Morand Lambla
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Jul 9, 1996
Inventors
Raphael Mestanza
Didier Graebling
Morand Lambla
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.