Granted Patent
Utility
US 6,341,842 · App. 09/564,148
Surface modified nozzle plate
Inventors:
Bradley Beach, Sean D. Smith, Jing Sun
Patented Case
View Patent ↗
Granted: Jan 29, 2002
Filed: May 3, 2000
Inventors
Bradley Beach
Sean D. Smith
Jing Sun
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.