Granted Patent
Utility
US 6,344,076 · App. 09/446,972
Monoazo dyes and inks containing them
Inventor:
Mark Kenworthy
Patented Case
View Patent ↗
Granted: Feb 5, 2002
Filed: Dec 30, 1999
Inventor
Mark Kenworthy
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.