Granted Patent
Utility
US 4,510,303 · App. 06/492,244
Ethylene-alpha-olefin-polyene random copolymer rubber
Inventors:
Hidekuni Oda, Syuji Minami, Hiroshi Inoue, Akira Matsuda, Yohzoh Yamamoto
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: May 6, 1983
Inventors
Hidekuni Oda
Syuji Minami
Hiroshi Inoue
Akira Matsuda
Yohzoh Yamamoto
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.