Granted Patent
Utility
US 5,625,396 · App. 08/179,866
Ink delivery method for an inkjet print cartridge
Inventors:
Brian J. Keefe, Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland, Kenneth E. Trueba
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Jan 11, 1994
Inventors
Brian J. Keefe
Steven W. Steinfield
Winthrop D. Childers
Paul H. McClelland
Kenneth E. Trueba
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.