Granted Patent
Utility
US 4,982,001 · App. 07/290,068
Process for the preparation of amino-1,3-benzenediol
Inventors:
Zenon Lysenko, Cynthia L. Rand
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Dec 27, 1988
Inventors
Zenon Lysenko
Cynthia L. Rand
Assignee (at issue)
THE DOW CHEMICAL COMPANY
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.