Granted Patent
Utility
US 5,876,980 · App. 08/419,659
Enzymatic synthesis of oligosaccharides
Inventors:
Shawn DeFrees, Robert J. Bayer, Murray Ratcliffe
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Apr 11, 1995
Inventors
Shawn DeFrees
Robert J. Bayer
Murray Ratcliffe
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.