Granted Patent
Utility
US 5,243,033 · App. 07/819,709
Fiber-reactive disazo and tetrakisazo halotriazinyl dyes
Inventor:
Athanassios Tzikas
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Jan 13, 1992
Inventor
Athanassios Tzikas
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.