Granted Patent
Utility
US 6,620,761 · App. 10/375,810
Catalyst comprising palladium and zirconia
Inventor:
William B. Retallick
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Feb 27, 2003
Inventor
William B. Retallick
Assignee (at issue)
Catacel, Corp.
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.