Granted Patent
Utility
US 5,589,865 · App. 08/356,592
Inkjet page-wide-array printhead cleaning method and apparatus
Inventor:
Robert R. Beeson
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Dec 14, 1994
Inventor
Robert R. Beeson
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.