Granted Patent
Utility
US 4,847,407 · App. 07/244,878
Diphenyl ester derivative of stilbenedicarboxylic acid
Inventor:
John C. Morris
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Sep 15, 1988
Inventor
John C. Morris
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.