Granted Patent
Utility
US 6,435,667 · App. 09/998,192
Opposed ejection ports and ink inlets in an ink jet printhead chip
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Dec 3, 2001
Inventor
Kia Silverbrook
Assignee (at issue)
Silverbrook Research Pty Ltd
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.