Granted Patent
Utility
US 6,672,709 · App. 10/303,352
Self-cooling thermal ink jet printhead
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Nov 23, 2002
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.