Granted Patent
Utility
US 5,700,749 · App. 08/396,893
Process for polymerizing olefins
Inventors:
Toshiyuki Tsutsui, Akinori Toyota, Norio Kashiwa
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Mar 1, 1995
Inventors
Toshiyuki Tsutsui
Akinori Toyota
Norio Kashiwa
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.