Granted Patent
Utility
US 4,792,558 · App. 07/055,589
Castanospermine for inhibiting tumor metastasis
Inventors:
Sai P. Sunkara, Barry L. Rhinehart, Paul S. Liu
Patented Case
View Patent ↗
Granted: Dec 20, 1988
Filed: May 29, 1987
Inventors
Sai P. Sunkara
Barry L. Rhinehart
Paul S. Liu
Assignee (at issue)
Merrell Dow Pharmaceuticals Inc.
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.