Granted Patent
Utility
US 5,252,394 · App. 07/585,963
Molecular orientation articles molded from high-molecular weight polyethylene and processes for preparing same
Inventors:
Yasuo Kouno, Yuichi Itoh, Kazuo Yagi
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Sep 21, 1990
Inventors
Yasuo Kouno
Yuichi Itoh
Kazuo Yagi
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.