Granted Patent
Utility
US 4,494,952 · App. 06/527,600
Wetting agents and their use as mercerizing assistants
Inventors:
Heinz Abel, Christian Guth
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Aug 29, 1983
Inventors
Heinz Abel
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.