Granted Patent
Utility
US 5,491,502 · App. 08/266,447
Thin pen structure for thermal ink-jet printer
Inventors:
David W. Swanson, Timothy J. Carlin, George T. Kaplinsky, John Paul Harmon
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Jun 28, 1994
Inventors
David W. Swanson
Timothy J. Carlin
George T. Kaplinsky
John Paul Harmon
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.