Granted Patent
Utility
US 6,726,755 · App. 10/072,210
Ink compositions containing phthalocyanines
Inventors:
Donald R. Titterington, Michael B. Meinhardt, Jeffrey H. Banning, James D. Mayo, James M. Duff, Roger E. Gaynor, Harold R. Frame
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Feb 8, 2002
Inventors
Donald R. Titterington
Michael B. Meinhardt
Jeffrey H. Banning
James D. Mayo
James M. Duff
Roger E. Gaynor
Harold R. Frame
Assignee (at issue)
Xerox Corporation
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.