Granted Patent
Utility
US 4,438,243 · App. 06/263,721
Process for producing random ethylene terpolymer
Inventors:
Norio Kashiwa, Yoshinori Morita, Michiharu Suga
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: May 14, 1981
Inventors
Norio Kashiwa
Yoshinori Morita
Michiharu Suga
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.