Granted Patent
Utility
US 4,419,289 · App. 06/356,991
Isothiazole type azo dyes containing imidazo type couplers
Inventors:
Jean Carroll Fleischer, Gary T. Clark, Max A. Weaver
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Mar 11, 1982
Inventors
Jean Carroll Fleischer
Gary T. Clark
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.