Granted Patent
Utility
US 5,663,236 · App. 08/396,888
Ethylene copolymer composition
Inventors:
Mamoru Takahashi, Seiichi Ikeyama, Akira Todo, Toshiyuki Tsutsui
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: Mar 1, 1995
Inventors
Mamoru Takahashi
Seiichi Ikeyama
Akira Todo
Toshiyuki Tsutsui
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.