Granted Patent
Utility
US 4,337,173 · App. 06/189,346
Solid-solution type crystalline oxides and their precursors
Inventor:
Masayuki Otake
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Sep 22, 1980
Inventor
Masayuki Otake
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.