Granted Patent
Utility
US 4,551,450 · App. 06/644,886
Rifamycin hydrazones, pharmaceutical compositions containing them and their use
Inventor:
Peter Traxler
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Aug 27, 1984
Inventor
Peter Traxler
Assignee (at issue)
Ciba-Geigy
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.