Granted Patent
Utility
US 5,206,346 · App. 07/623,261
Method for iodination/purification
Inventor:
William R. Taylor
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Dec 5, 1990
Inventor
William R. Taylor
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.