Granted Patent
Utility
US 5,013,327 · App. 07/376,089
Mercerizing and/or causticizing wetting agent: 2-ethyl-hexyl-sulfate and mixture of alkyl end-blocked polyethers
Inventors:
Bernd Wahle, Faize Selen
Patented Case
View Patent ↗
Granted: May 7, 1991
Filed: Jul 6, 1989
Inventors
Bernd Wahle
Faize Selen
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.