Granted Patent
Utility
US 5,451,665 · App. 08/048,082
Fibre-reactive dyes containing two halotriazine groups and dye mixtures and their use
Inventor:
Athanassios Tzikas
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Apr 15, 1993
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.