Granted Patent
Utility
US 4,409,378 · App. 06/471,065
Process for polymerization of .alpha.-olefins and catalysts therefor
Inventors:
Tadashi Asanuma, Nobutaka Uchikawa, Tetsunosuke Shiomura
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Mar 7, 1983
Inventors
Tadashi Asanuma
Nobutaka Uchikawa
Tetsunosuke Shiomura
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.