Granted Patent
Utility
US 5,430,117 · App. 08/274,284
Nonconjugated diene-vinyl aromatic-.alpha.-olefin interpolymers
Inventors:
Masaaki Kawasaki, Keiji Okada, Kenzaburo Fukutani, Tetsuo Tojo, Akemi Uchimi
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: Jul 13, 1994
Inventors
Masaaki Kawasaki
Keiji Okada
Kenzaburo Fukutani
Tetsuo Tojo
Akemi Uchimi
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.