Granted Patent
Utility
US 5,756,721 · App. 08/297,673
Purification of polysaccharides
Inventors:
James L. Eden, James J. Kasica, Leo Walsh, Morton W. Rutenberg, Norman L. Lacourse, Daniel B. Solarek, Timothy G. Koubek
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Aug 29, 1994
Inventors
James L. Eden
James J. Kasica
Leo Walsh
Morton W. Rutenberg
Norman L. Lacourse
Daniel B. Solarek
Timothy G. Koubek
Assignee (at issue)
National Starch and Chemical Investment Holding Copporation
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.