Granted Patent
Utility
US 5,886,719 · App. 08/618,238
Ink valve having a releasable tip for a print cartridge recharge system
Inventor:
Alfred Zepeda
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Mar 14, 1996
Inventor
Alfred Zepeda
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.