Granted Patent
Utility
US 5,324,805 · App. 07/661,334
Ethylene/pentene-1 copolymer and ethylene/pentene-1 copolymer composition
Inventors:
Mamoru Kioka, Takashi Ueda, Masaya Yamada, Masaki Kohyama, Seiichi Ikeyama, Yoshinori Akana, Kenji Iwata, Hiroshi Nishikawa, Kazumitsu Kawakita, Hideki Sakai
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Feb 27, 1991
Inventors
Mamoru Kioka
Takashi Ueda
Masaya Yamada
Masaki Kohyama
Seiichi Ikeyama
Yoshinori Akana
Kenji Iwata
Hiroshi Nishikawa
Kazumitsu Kawakita
Hideki Sakai
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.