Granted Patent
Utility
US 5,075,463 · App. 07/593,133
Preparation of quinones
Inventors:
Yeong-Jen Kuo, Michael Bellas
Patented Case
View Patent ↗
Granted: Dec 24, 1991
Filed: Oct 5, 1990
Inventors
Yeong-Jen Kuo
Michael Bellas
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.