Granted Patent
Utility
US 5,430,119 · App. 08/332,490
Stretched molded article of ultra-high-molecular weight polypropylene and process for the preparation of the same
Inventors:
Masahiro Kouya, Kazuo Yagi, Akio Fukui, Masahiro Ogawa
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Oct 31, 1994
Inventors
Masahiro Kouya
Kazuo Yagi
Akio Fukui
Masahiro Ogawa
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.