Granted Patent
Utility
US 5,216,449 · App. 07/737,944
Rounded capillary vent system for ink-jet printers
Inventor:
Kris M. English
Patented Case
View Patent ↗
Granted: Jun 1, 1993
Filed: Jul 29, 1991
Inventor
Kris M. English
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.