Granted Patent
Utility
US 6,530,644 · App. 09/847,275
Method and apparatus for cleaning fluid ejection cartridge and maintenance station
Inventors:
Karai P. Premnath, Thomas J. Trenchard, Leonard M. Carreira, Donald P. Curran, Jr.
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: May 3, 2001
Inventors
Karai P. Premnath
Thomas J. Trenchard
Leonard M. Carreira
Donald P. Curran, Jr.
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.