Granted Patent
Utility
US 4,359,570 · App. 06/315,105
Colored polyester containing copolymerized dyes as colorants
Inventors:
Thomas G. Davis, Max A. Weaver
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Oct 26, 1981
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.