Granted Patent
Utility
US 4,472,527 · App. 06/473,196
Process for preparing an oxidation catalyst composition
Inventors:
Masayuki Otake, Masayoshi Murayama, Yuji Kawaragi
Patented Case
View Patent ↗
Granted: Sep 18, 1984
Filed: Mar 8, 1983
Inventors
Masayuki Otake
Masayoshi Murayama
Yuji Kawaragi
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.