Granted Patent
Utility
US 5,866,530 · App. 08/755,997
Non-aqueous liquid mixtures of alkyl polyglycoside and alkyl polyalkylene glycol ether useful in various detergent applications
Inventors:
Karl Schmid, Michael Neuss
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Nov 25, 1996
Inventors
Karl Schmid
Michael Neuss
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.