Granted Patent
Utility
US 4,764,175 · App. 06/897,445
Metal-free monoazo and disazo compounds having a 1-hydroxy-5,6-, 7- or 8- substituted 1,3,5-triazinylamino-3- or 4 sulfonic acid coupling component radical and 1:1 copper complexes
Inventors:
Jacky Dore, Reinhard Pedrazzi
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Aug 15, 1986
Inventors
Jacky Dore
Reinhard Pedrazzi
Assignee (at issue)
Sandoz AG
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.