Granted Patent
Utility
US 4,374,767 · App. 06/177,151
Substituted ether or thioether isothiazole azo dyes
Inventors:
Max A. Weaver, Jean Carroll Fleischer
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Aug 11, 1980
Inventors
Max A. Weaver
Jean Carroll Fleischer
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.