Granted Patent
Utility
US 4,753,983 · App. 06/860,603
Polymeric matrix for affinity chromatography and immobilization of ligands
Inventor:
That T. Ngo
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: May 7, 1986
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.