Granted Patent
Utility
US 4,399,280 · App. 06/213,252
5-Phenylcarbamoylbarbituric acid compounds
Inventors:
Bernardo de Sousa, Rene Muntwyler, Werner Schmid
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Dec 5, 1980
Inventors
Bernardo de Sousa
Rene Muntwyler
Werner Schmid
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.