Granted Patent
Utility
US 5,455,607 · App. 08/056,959
Black text quality in printers using multiple black and color pens
Inventors:
W. Wistar Rhoads, Lance Cleveland, Abdolreza Movaghar
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: May 3, 1993
Inventors
W. Wistar Rhoads
Lance Cleveland
Abdolreza Movaghar
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.