Granted Patent
Utility
US 5,019,627 · App. 07/449,327
Injection-molding polyolefin composition
Inventors:
Shiro Honma, Kenichi Tominari, Masayoshi Kurisu
Patented Case
View Patent ↗
Granted: May 28, 1991
Filed: Dec 11, 1989
Inventors
Shiro Honma
Kenichi Tominari
Masayoshi Kurisu
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.