Granted Patent
Utility
US 4,444,684 · App. 06/345,989
Azo dyes containing a diazotized 5-amino isothiazol moiety having thereon a sulfonic acid or salt group
Inventors:
Max A. Weaver, Bill A. Eller
Patented Case
View Patent ↗
Granted: Apr 24, 1984
Filed: Feb 5, 1982
Inventors
Max A. Weaver
Bill A. Eller
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.