Granted Patent
Utility
US 6,575,550 · App. 10/060,448
Determining performance of a fluid ejection device
Inventor:
Steven W. Steinfield
Patented Case
View Patent ↗
Granted: Jun 10, 2003
Filed: Jan 30, 2002
Inventor
Steven W. Steinfield
Assignee (at issue)
Hewlett-Packard Development 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.