Granted Patent
Utility
US 6,676,910 · App. 09/787,943
Processes for the causticisation of Bayer liquors in an alumina refinery
Inventors:
Steven Rosenberg, Darrel J. Wilson, Catherine A. Heath
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Mar 23, 2001
Inventors
Steven Rosenberg
Darrel J. Wilson
Catherine A. Heath
Assignee (at issue)
Worsley Alumina Pty. Ltd.
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.