Granted Patent
Utility
US 6,664,396 · App. 10/373,246
One step synthesis for quinacridone compounds
Inventor:
Lelia Cosimbescu
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Feb 24, 2003
Inventor
Lelia Cosimbescu
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.