Granted Patent
Utility
US 5,703,180 · App. 08/618,109
Catalyst for olefin polymerization, process for olefin polymerization using the same, ethylene/.alpha.-olefin copolymer, graft modified ethylene/.alpha.-olefin copolymer, and ethylene copolymer composition
Inventors:
Toshiyuki Tsutsui, Ken Yoshitsugu, Mamoru Takahashi, Akira Todo
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Mar 19, 1996
Inventors
Toshiyuki Tsutsui
Ken Yoshitsugu
Mamoru Takahashi
Akira Todo
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.