Granted Patent
Utility
US 5,168,285 · App. 07/610,886
Modal ink jet printing system
Inventor:
Thomas H. Winslow
Patented Case
View Patent ↗
Granted: Dec 1, 1992
Filed: Nov 7, 1990
Inventor
Thomas H. Winslow
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.