Granted Patent
Utility
US 4,602,055 · App. 06/617,443
Process for pad dyeing cellulosic textile materials
Inventors:
Paul Schafer, Hans-Ulrich Berendt
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Jun 4, 1984
Inventors
Paul Schafer
Hans-Ulrich Berendt
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.