Granted Patent
Utility
US 5,545,731 · App. 08/313,178
Alkyl and/or alkenyl oligoglycoside carbonates
Inventor:
Manfred Weuthen
Patented Case
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Granted: Aug 13, 1996
Filed: Oct 3, 1994
Inventor
Manfred Weuthen
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.