Granted Patent
Utility
US 4,850,981 · App. 06/460,616
Arenteral infusion of nitroglycerin solutions
Inventors:
Dietmar Wagenknecht, Anton Amann, Daphne R. Gallagher
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jan 24, 1983
Inventors
Dietmar Wagenknecht
Anton Amann
Daphne R. Gallagher
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.