Granted Patent
Utility
US 4,331,591 · App. 06/080,763
Chemical process for the production of .alpha.-aminophosphonic acids and peptide derivatives
Inventor:
Eric K. Baylis
Patented Case
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Granted: May 25, 1982
Filed: Oct 1, 1979
Inventor
Eric K. Baylis
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.