Granted Patent
Utility
US 4,549,898 · App. 06/501,459
N-Heterocyclosulfonyl-N'-pyrimidinylureas and N-heterocyclosulfonyl-N'-triazinylureas
Inventors:
Beat Bohner, Werner Fory, Karl Gass, Willy Meyer
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Jun 6, 1983
Inventors
Beat Bohner
Werner Fory
Karl Gass
Willy Meyer
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.