Granted Patent
Utility
US 4,612,148 · App. 06/755,590
Process for producing stretched articles of ultrahigh-molecular-weight polyethylene
Inventors:
Masanori Motooka, Hitoshi Mantoku, Takao Ohno
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: Jul 16, 1985
Inventors
Masanori Motooka
Hitoshi Mantoku
Takao Ohno
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.