Granted Patent
Utility
US 6,504,016 · App. 10/061,125
Reactive dyes, processes for the preparation thereof and the use thereof
Inventors:
Athanassios Tzikas, Bruno Cortese
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Nov 13, 2001
Inventors
Athanassios Tzikas
Bruno Cortese
Assignee (at issue)
Ciba Specialty Chemicals Corporation
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.