Granted Patent
Utility
US 4,534,953 · App. 06/508,906
Process for preparing solid titanium trichloride useful for the polymerization of an .alpha.-olefin
Inventors:
Nobuaki Goko, Yumito Uehara
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Jun 29, 1983
Inventors
Nobuaki Goko
Yumito Uehara
Assignee (at issue)
Mitsubishi Chemical 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.