Granted Patent
Utility
US 4,908,411 · App. 07/346,335
Modified ethylenic random copolymer
Inventors:
Tatsuo Kinoshita, Syuji Minami
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: May 1, 1989
Inventors
Tatsuo Kinoshita
Syuji Minami
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.