Granted Patent
Utility
US 6,190,002 · App. 09/428,080
Ink jet pen
Inventor:
Paul Timothy Spivey
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Oct 27, 1999
Inventor
Paul Timothy Spivey
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.