Granted Patent
Utility
US 4,948,881 · App. 07/302,147
Process for the depolymerization and sulfation of polysaccharides
Inventors:
Annamaria Naggi, Giangiacomo Torri
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jan 27, 1989
Inventors
Annamaria Naggi
Giangiacomo Torri
Assignee (at issue)
Sanofi
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.