Granted Patent
Utility
US 5,602,577 · App. 08/279,752
Humidifier apparatus for fluid-containing tubes and an improved ink-jet printer utilizing the apparatus
Inventors:
Alan Shibata, Bruce Cowger
Patented Case
View Patent ↗
Granted: Feb 11, 1997
Filed: Jul 21, 1994
Inventors
Alan Shibata
Bruce Cowger
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.