Granted Patent
Utility
US 5,478,890 · App. 08/193,859
Olefin polymer composition
Inventors:
Tetsunori Shinozaki, Mamoru Kioka
Patented Case
View Patent ↗
Granted: Dec 26, 1995
Filed: Feb 9, 1994
Inventors
Tetsunori Shinozaki
Mamoru Kioka
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.