Granted Patent
Utility
US 6,478,404 · App. 09/774,811
Ink jet printhead
Inventors:
Joseph M. Torgerson, Robert N. K. Browning, Mark H. MacKenzie, Michael D. Miller, Angela Bakkom
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jan 30, 2001
Inventors
Joseph M. Torgerson
Robert N. K. Browning
Mark H. MacKenzie
Michael D. Miller
Angela Bakkom
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.