Granted Patent
Utility
US 5,589,591 · App. 08/346,142
Endotoxin-free polysaccharides
Inventor:
Jerome M. Lewis
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Nov 29, 1994
Inventor
Jerome M. Lewis
Assignee (at issue)
Advanced Magnetics, 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.