Granted Patent
Utility
US 6,467,869 · App. 09/905,224
Economical ink cartridge identification
Inventors:
Eric A. Merz, Richard E. Butts, Craig Tiller
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: Jul 13, 2001
Inventors
Eric A. Merz
Richard E. Butts
Craig Tiller
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.