Granted Patent
Utility
US 5,753,025 · App. 08/764,770
Titanium dioxide pigment coated with boria-modified silica and alumina
Inventors:
Charles Robert Bettler, Howard W. Jacobson, Michael R. Baloga, Max H. Lewis
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Dec 12, 1996
Inventors
Charles Robert Bettler
Howard W. Jacobson
Michael R. Baloga
Max H. Lewis
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND 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.