Granted Patent
Utility
US 5,750,035 · App. 08/717,444
Process for dye removal
Inventors:
Paul W. Shepperd, III, Larry W. Becker, Robert J. Cundiff
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Sep 20, 1996
Inventors
Paul W. Shepperd, III
Larry W. Becker
Robert J. Cundiff
Assignee (at issue)
Hoechst Celanese Corporation
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.