Granted Patent
Utility
US 4,297,400 · App. 06/064,659
Process for imparting to textile materials a soft handle using unsaturated aliphatic acid amides
Inventors:
Jorg Kern, Christian Guth
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Aug 8, 1979
Inventors
Jorg Kern
Christian Guth
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.