Granted Patent
Utility
US 4,798,866 · App. 07/072,670
Branched alpha-olefin polymer composition and process for its production
Inventors:
Junichi Yoshitake, Hiroaki Kitani, Norio Kashiwa, Takeshi Muranaka, Kenichi Tominari, Shigeki Nagamatsu
Patented Case
View Patent ↗
Granted: Jan 17, 1989
Filed: Jul 13, 1987
Inventors
Junichi Yoshitake
Hiroaki Kitani
Norio Kashiwa
Takeshi Muranaka
Kenichi Tominari
Shigeki Nagamatsu
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.