Granted Patent
Utility
US 4,616,059 · App. 06/770,058
Graft-modified ultrahigh-molecular-weight polyethylene and process for producing same
Inventors:
Masanori Motooka, Hitoshi Mantoku
Patented Case
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Granted: Oct 7, 1986
Filed: Aug 28, 1985
Inventors
Masanori Motooka
Hitoshi Mantoku
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.