Catalytic solid for the (co)polymerization of ethylene, process for its preparation, and catalytic system for the (co)polymerization of ethylene

Granted: Jan 11, 2000 Filed: Feb 27, 1996

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.