Granted Patent
Utility
US 6,794,669 · App. 10/202,133
Media sensing apparatus for detecting an absence of print media
Inventors:
Mahesan Chelvayohan, Herman Anthony Smith, Charles Simpson
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Jul 24, 2002
Inventors
Mahesan Chelvayohan
Herman Anthony Smith
Charles Simpson
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.