Granted Patent
Utility
US 6,800,787 · App. 10/673,176
Catalyst for acidolysis of aromatic hydroperoxy compound and process for producing aromatic hydroxy compound using the same
Inventor:
Mitsuru Oonuma
Patented Case
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Granted: Oct 5, 2004
Filed: Sep 30, 2003
Inventor
Mitsuru Oonuma
Assignee (at issue)
SUMITOMO CHEMICAL COMPANY, LIMITED
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.