Granted Patent
Utility
US 5,470,919 · App. 08/280,831
Chlorinated ethylene/.alpha.-olefin copolymer rubber and composition containing the same
Inventors:
Tetsuo Tojo, Muneyuki Matsumoto, Yoshiharu Kikuchi
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Jul 26, 1994
Inventors
Tetsuo Tojo
Muneyuki Matsumoto
Yoshiharu Kikuchi
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.