Reactive dyes containing a trisamino-substituted triazinyl moiety which is further substituted by two vinylsulfonyl-alkyl- or -aryl-groups

Granted: Jan 28, 1992 Filed: Oct 17, 1989

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.