Granted Patent
Utility
US 5,703,181 · App. 08/585,812
Catalyst olefin polymerization and process for olefin polymerization using the same
Inventors:
Takashi Tashiro, Takashi Ueda
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Jan 16, 1996
Inventors
Takashi Tashiro
Takashi Ueda
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.