Granted Patent
Utility
US 4,396,597 · App. 06/233,137
Process for the preparation of a sterile injectable physiologically acceptable solution of an X-ray contrast agent and solutions of the X-ray contrast agent and a buffer
Inventors:
Fridtjov B. Rakli, Michael J. Kelly
Patented Case
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Granted: Aug 2, 1983
Filed: Feb 10, 1981
Inventors
Fridtjov B. Rakli
Michael J. Kelly
Assignee (at issue)
Nyegaard & Co. A/S
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.