Granted Patent
Utility
US 4,490,167 · App. 06/172,312
Oxime derivatives of diphenyl ethers and their use in herbicidal compositions
Inventors:
Georg Pissiotas, Otto Rohr
Patented Case
View Patent ↗
Granted: Dec 25, 1984
Filed: Jul 25, 1980
Inventors
Georg Pissiotas
Otto Rohr
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.