Granted Patent
Utility
US 5,969,113 · App. 08/979,468
Reactive dyes, their preparation and use
Inventors:
Rolf Deitz, Bernhard Muller, Athanassios Tzikas
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Nov 26, 1997
Inventors
Rolf Deitz
Bernhard Muller
Athanassios Tzikas
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.