Granted Patent
Utility
US 5,356,445 · App. 08/126,816
Process for dyeing natural or synthetic polyamide fibre material with dye mixtures
Inventors:
Christian De Meulemeester, Patrick Runser
Patented Case
View Patent ↗
Granted: Oct 18, 1994
Filed: Sep 24, 1993
Inventors
Christian De Meulemeester
Patrick Runser
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.