Granted Patent
Utility
US 4,886,755 · App. 07/110,103
Preparation of polymeric thiol gels for covalent bonding of biologically active ligands
Inventor:
That T. Ngo
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Oct 13, 1987
Inventor
That T. Ngo
Assignee (at issue)
BioProbe International, 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.