Granted Patent
Utility
US 5,455,613 · App. 08/204,799
Thin film resistor printhead architecture for thermal ink jet pens
Inventors:
Brian Canfield, David A. Johnson, John Paul Harmon
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Mar 2, 1994
Inventors
Brian Canfield
David A. Johnson
John Paul Harmon
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.