Granted Patent
Utility
US 4,497,808 · App. 06/453,393
N-Oxide compounds useful in the treatment of cardiovascular ailments
Inventors:
Markus Zimmermann, Hans Kuhnis
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Dec 27, 1982
Inventors
Markus Zimmermann
Hans Kuhnis
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.