Granted Patent
Utility
US 5,409,874 · App. 07/901,015
Catalyst for olefin polymerization, process for the polymerization of olefin, and transition metal compound employable for the catalyst
Inventors:
Junichi Imuta, Junji Saito, Takashi Ueda, Teruaki Mukaiyama
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: Jun 19, 1992
Inventors
Junichi Imuta
Junji Saito
Takashi Ueda
Teruaki Mukaiyama
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.