Granted Patent
Utility
US 5,122,490 · App. 07/738,929
Catalyst component for olefin polymerization
Inventors:
Toshihiro Uwai, Masami Tachibana, Teruaki Hayashida
Patented Case
View Patent ↗
Granted: Jun 16, 1992
Filed: Aug 1, 1991
Inventors
Toshihiro Uwai
Masami Tachibana
Teruaki Hayashida
Assignee (at issue)
Chisso Corporation
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.