Granted Patent
Utility
US 4,748,178 · App. 06/829,589
5-(pyridyloxy- or pyridylthio-phenyl)carbamoyl barbituric acid derivatives
Inventors:
Urs Burckhardt, Jean J. Gallay, Manfred Kuhne
Patented Case
View Patent ↗
Granted: May 31, 1988
Filed: Feb 13, 1986
Inventors
Urs Burckhardt
Jean J. Gallay
Manfred Kuhne
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.