Granted Patent
Utility
US 5,115,067 · App. 07/504,105
Molecularly oriented molded body of ultra-high-molecular weight ethylene/.alpha.-olefin copolymer
Inventors:
Kazuo Yagi, Akinori Toyota
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Apr 4, 1990
Inventors
Kazuo Yagi
Akinori Toyota
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.