Granted Patent
Utility
US 4,900,864 · App. 07/230,289
Manufacture of alkyl glyoxylates with ferric phosphate catalyst
Inventors:
Prakasa Rao Anantaneni, Tao Li
Patented Case
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Granted: Feb 13, 1990
Filed: Aug 9, 1988
Inventors
Prakasa Rao Anantaneni
Tao Li
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.