Granted Patent
Utility
US 4,582,875 · App. 06/679,525
Method of activating hydroxyl groups of a polymeric carrier using 2-fluoro-1-methylpyridinium toluene-4-sulfonate
Inventor:
That T. Ngo
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Dec 7, 1984
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.