Granted Patent
Utility
US 4,284,620 · App. 06/023,506
N-(2-Hydroxyethyl)-2,4,6-triiodo-3,5-bis-(2-keto-L-gulonamido)benzamide and radiological compositions containing same
Inventors:
Youlin Lin, Kenneth R. Smith
Patented Case
View Patent ↗
Granted: Aug 18, 1981
Filed: Mar 23, 1979
Inventors
Youlin Lin
Kenneth R. Smith
Assignee (at issue)
MALLINCKRODT LLC
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.