Granted Patent
Utility
US 4,967,207 · App. 07/385,760
Ink jet printer with self-regulating refilling system
Inventor:
James L. Ruder
Patented Case
View Patent ↗
Granted: Oct 30, 1990
Filed: Jul 26, 1989
Inventor
James L. Ruder
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.