Granted Patent
Utility
US 4,497,744 · App. 06/202,962
Gentisic acid salts as radiographic scanning agent stabilizers
Inventor:
Mahdi B. Fawzi
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Nov 3, 1980
Inventor
Mahdi B. Fawzi
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.