Granted Patent
Utility
US 4,440,738 · App. 06/387,138
Stable radiographic imaging agents
Inventors:
Mahdi B. Fawzi, James J. Benedict, Joseph E. Bugaj, Charles Raymond Degenhardt, Barry F. Van Duzee
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Jun 10, 1982
Inventors
Mahdi B. Fawzi
James J. Benedict
Joseph E. Bugaj
Charles Raymond Degenhardt
Barry F. Van Duzee
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.