Granted Patent
Utility
US 4,263,183 · App. 06/089,715
Cellulose ester/copolyacrylate composition
Inventors:
Ronald R. Light, John R. Dombroski
Patented Case
View Patent ↗
Granted: Apr 21, 1981
Filed: Oct 31, 1979
Inventors
Ronald R. Light
John R. Dombroski
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.