Granted Patent
Utility
US 6,040,403 · App. 08/928,001
Nickel catalysts for polymerization
Inventor:
Karl-Heinz Aleksander Ostoja Starzewski
Patented Case
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Granted: Mar 21, 2000
Filed: Sep 11, 1997
Inventor
Karl-Heinz Aleksander Ostoja Starzewski
Assignee (at issue)
Bayer Aktiengesellschaft
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.