Granted Patent
Utility
US 5,747,401 · App. 08/730,554
Cerium and zirconium oxides, mixed oxides and solid solutions having improved thermal stability
Inventor:
Jean-Pierre Cuif
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Oct 15, 1996
Inventor
Jean-Pierre Cuif
Assignee (at issue)
Rhone-Poulenc, Inc.
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.