Granted Patent
Utility
US 5,631,356 · App. 08/313,287
Selective N-acylation of amino alcohols
Inventors:
Jan W. H. Smeets, Pieter Gijsbert Weber
Patented Case
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Granted: May 20, 1997
Filed: Dec 1, 1994
Inventors
Jan W. H. Smeets
Pieter Gijsbert Weber
Assignee (at issue)
Gist-Brocades N.V.
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.