Granted Patent
Utility
US 6,402,284 · App. 09/327,622
Method and apparatus for detecting ink tank characteristics
Inventor:
Eric A. Merz
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jun 8, 1999
Inventor
Eric A. Merz
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.