Granted Patent
Utility
US 5,659,342 · App. 08/316,150
On-page inkjet printhead spitting system
Inventors:
Mark D. Lund, Jefferson P. Ward
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Sep 30, 1994
Inventors
Mark D. Lund
Jefferson P. Ward
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.