Granted Patent
Utility
US 5,439,994 · App. 08/277,570
Method of polymerizing an olefin using a novel transition metal compound
Inventors:
Norihide Inoue, Tetsunosuke Shiomura, Masahiro Kouno, Yoshiho Sonobe, Kazumi Mizutani
Patented Case
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Granted: Aug 8, 1995
Filed: Jul 20, 1994
Inventors
Norihide Inoue
Tetsunosuke Shiomura
Masahiro Kouno
Yoshiho Sonobe
Kazumi Mizutani
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.