Granted Patent
Utility
US 5,237,010 · App. 07/957,864
Chlorinated ethylene-.alpha.-olefin copolymer rubber and composition
Inventors:
Tetsuo Tojo, Keiji Okada, Yoshiharu Kikuchi, Yasuhiko Otawa, Toshiyuki Maeda, Katsuo Okamoto
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Oct 8, 1992
Inventors
Tetsuo Tojo
Keiji Okada
Yoshiharu Kikuchi
Yasuhiko Otawa
Toshiyuki Maeda
Katsuo Okamoto
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.