Granted Patent
Utility
US 6,436,866 · App. 09/578,862
Lewis acid catalyst composition
Inventors:
Joji Nishikido, Hitoshi Nakajima
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: May 26, 2000
Inventors
Joji Nishikido
Hitoshi Nakajima
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.