Granted Patent
Utility
US 5,659,345 · App. 08/331,849
Ink-jet pen with one-piece pen body
Inventor:
John M. Altendorf
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Oct 31, 1994
Inventor
John M. Altendorf
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.