Granted Patent
Utility
US 6,428,140 · App. 09/967,831
Restriction within fluid cavity of fluid drop ejector
Inventor:
Antonio Cruz-Uribe
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Sep 28, 2001
Inventor
Antonio Cruz-Uribe
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.