Granted Patent
Utility
US 5,103,244 · App. 07/549,583
Method and apparatus for cleaning ink-jet printheads
Inventors:
Paul D. Gast, Walter Uebelacker, J. Paul Harmon
Patented Case
View Patent ↗
Granted: Apr 7, 1992
Filed: Jul 5, 1990
Inventors
Paul D. Gast
Walter Uebelacker
J. 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.