Granted Patent
Utility
US 5,118,823 · App. 07/628,957
Oxidation of dihydroxyaromatic compounds to quinones
Inventors:
Dale E. Van Sickle, Garry L. Myers, William D. Nottingham, Glenn C. Jones
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Dec 13, 1990
Inventors
Dale E. Van Sickle
Garry L. Myers
William D. Nottingham
Glenn C. Jones
Assignee (at issue)
EASTMAN KODAK 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.