Granted Patent
Utility
US 5,451,990 · App. 08/056,325
Reference pattern for use in aligning multiple inkjet cartridges
Inventors:
Paul R. Sorenson, Keith E. Cobbs, Robert W. Beauchamp
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Apr 30, 1993
Inventors
Paul R. Sorenson
Keith E. Cobbs
Robert W. Beauchamp
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.