Granted Patent
Utility
US 4,435,320 · App. 06/346,831
Disperse azo dyes from 2-amino-3,5-bisfluorosulphonyl thiophene and aniline, tetrahydroquinoline, and benzomorpholine couplers
Inventor:
Robert Gourley
Patented Case
View Patent ↗
Granted: Mar 6, 1984
Filed: Feb 8, 1982
Inventor
Robert Gourley
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.