Granted Patent
Utility
US 5,145,519 · App. 07/807,924
Specific dye set for thermal ink-jet printing
Inventor:
William D. Kappele
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Dec 16, 1991
Inventor
William D. Kappele
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.