Granted Patent
Utility
US 6,323,327 · App. 09/704,354
Reactive dyes, processes for their preparation and their use
Inventors:
Athanassios Tzikas, Rolf Deitz, Herbert Klier
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Nov 2, 2000
Inventors
Athanassios Tzikas
Rolf Deitz
Herbert Klier
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.