Granted Patent
Utility
US 6,550,893 · App. 10/047,055
Semiconductor chip for an ink jet printhead and method for making same
Inventors:
James Mrvos, Carl Edmond Sullivan
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Jan 14, 2002
Inventors
James Mrvos
Carl Edmond Sullivan
Assignee (at issue)
Lexmark International, Inc.
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.