Granted Patent
Utility
US 5,964,900 · App. 09/100,002
Process for dyeing or printing cellulosic fibre materials and novel reactive dyes
Inventors:
Edmond Ruhlmann, Athanassios Tzikas, Herbert Klier
Patented Case
View Patent ↗
Granted: Oct 12, 1999
Filed: Jun 17, 1998
Inventors
Edmond Ruhlmann
Athanassios Tzikas
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.