Granted Patent
Utility
US 5,721,576 · App. 08/566,641
Refill kit and method for refilling an ink supply for an ink-jet printer
Inventor:
John A. Barinaga
Patented Case
View Patent ↗
Granted: Feb 24, 1998
Filed: Dec 4, 1995
Inventor
John A. Barinaga
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.