Granted Patent
Utility
US 5,409,817 · App. 08/057,528
Use of trans-sialidase and sialyltransferase for synthesis of sialyl.alpha.2.fwdarw.3.beta.galactosides
Inventors:
Yukishige Ito, James C. Paulson
Patented Case
View Patent ↗
Granted: Apr 25, 1995
Filed: May 4, 1993
Inventors
Yukishige Ito
James C. Paulson
Assignee (at issue)
Cytel 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.