Granted Patent
Utility
US 6,439,699 · App. 09/422,805
Ink supply unit structure
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Oct 19, 1999
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.