Granted Patent
Utility
US 4,906,443 · App. 07/220,123
Construction, method of making and method of using alumina-supported, precious metal oxidation catalysts
Inventors:
Haren S. Gandhi, William L. H. Watkins
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Jul 15, 1988
Inventors
Haren S. Gandhi
William L. H. Watkins
Assignee (at issue)
Ford Motor Company
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.