Granted Patent
Utility
US 5,573,993 · App. 08/272,287
Process for the preparation of a catalyst for the polymerization of olefins and catalyst obtained thereby
Inventor:
Benoit Koch
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Jul 8, 1994
Inventor
Benoit Koch
Assignee (at issue)
SOLVAY (Société 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.