Granted Patent
Utility
US 5,767,331 · App. 08/449,282
Ethylene/alpha-olefin copolymer
Inventors:
Hidekuni Oda, Tatuo Kinoshita, Akiyoshi Shimizu
Patented Case
View Patent ↗
Granted: Jun 16, 1998
Filed: May 24, 1995
Inventors
Hidekuni Oda
Tatuo Kinoshita
Akiyoshi Shimizu
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.