Granted Patent
Utility
US 5,103,246 · App. 07/657,343
X-Y multiplex drive circuit and associated ink feed connection for maximizing packing density on thermal ink jet (TIJ) printheads
Inventor:
John Dunn
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Feb 15, 1991
Inventor
John Dunn
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.