Granted Patent
Utility
US 5,356,443 · App. 08/117,847
Stabilization of dyeings of polyamide fibres
Inventors:
Gerhard Reinert, Thys Bouwknegt, Francesco Fuso
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Sep 7, 1993
Inventors
Gerhard Reinert
Thys Bouwknegt
Francesco Fuso
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.