Granted Patent
Utility
US 5,356,440 · App. 08/096,143
Process for the dyeing of synthetic polyamide fibre materials
Inventors:
Pierre Galafassi, Jean-Marie Adam
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Jul 22, 1993
Inventors
Pierre Galafassi
Jean-Marie Adam
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.