Granted Patent
Utility
US 5,696,214 · App. 08/575,678
Process for preparing ethylene-.alpha.-olefin-nonconjugated polyene random copolymer
Inventors:
Toshihiro Sagane, Toshiyuki Tsutsui, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo
Patented Case
View Patent ↗
Granted: Dec 9, 1997
Filed: Dec 19, 1995
Inventors
Toshihiro Sagane
Toshiyuki Tsutsui
Masaaki Kawasaki
Keiji Okada
Hidenari Nakahama
Tetsuo Tojo
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.