Granted Patent
Utility
US 6,168,267 · App. 09/512,420
Pressure controlled ink cartridge
Inventor:
Steven R. Komplin
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Feb 23, 2000
Inventor
Steven R. Komplin
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.