Granted Patent
Utility
US 4,267,306 · App. 06/012,415
Polyester polymers containing residues of anthroquinone dyes
Inventors:
Thomas G. Davis, Max A. Weaver
Patented Case
View Patent ↗
Granted: May 12, 1981
Filed: Feb 15, 1979
Inventors
Thomas G. Davis
Max A. Weaver
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.