Granted Patent
Utility
US 5,583,213 · App. 08/439,522
Process to activate sulfated polysaccharides
Inventors:
Masao Yafuso, Robert J. Linhardt
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: May 12, 1995
Inventors
Masao Yafuso
Robert J. Linhardt
Assignee (at issue)
Minnesota Mining and Manufacturing Company
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.