Granted Patent
Utility
US 5,166,405 · App. 07/831,119
Benzoates containing a substituent having olefinic unsaturation
Inventor:
Alfred Steinmann
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Feb 4, 1992
Inventor
Alfred Steinmann
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.