Granted Patent
Utility
US 6,019,457 · App. 08/353,999
Ink jet print device and print head or print apparatus using the same
Inventor:
Kia Silverbrook
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Dec 6, 1994
Inventor
Kia Silverbrook
Assignees (at issue)
Canon Information Systems Research Australia Pty. Ltd.
CANON KABUSHIKI KAISHA
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.