Granted Patent
Utility
US 5,081,095 · App. 07/580,029
Method of making a support containing an alumina-ceria washcoat for a noble metal catalyst
Inventors:
Raymond E. Bedford, Chih-Hao M. Tsang
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Sep 10, 1990
Inventors
Raymond E. Bedford
Chih-Hao M. Tsang
Assignee (at issue)
General Motors LLC
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.