Granted Patent
Utility
US 6,136,820 · App. 07/622,305
Isolation of castanospermine and its use as an antidiabetic agent
Inventors:
Paul S. Liu, Barry L. Rhinehart
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: Dec 5, 1990
Inventors
Paul S. Liu
Barry L. Rhinehart
Assignee (at issue)
Merrell 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.