Granted Patent
Utility
US 4,637,829 · App. 06/723,233
Sulfonylureas
Inventors:
Rolf Schurter, Georg Pissiotas
Patented Case
View Patent ↗
Granted: Jan 20, 1987
Filed: Apr 15, 1985
Inventors
Rolf Schurter
Georg Pissiotas
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.