Granted Patent
Utility
US 6,517,620 · App. 09/581,296
Mono-azo dyes and inks for ink-jet printing
Inventors:
Kathryn Carr, Mark Kenworthy, Paul Wight
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Jun 12, 2000
Inventors
Kathryn Carr
Mark Kenworthy
Paul Wight
Assignee (at issue)
Avecia Limited
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.