Granted Patent
Utility
US 5,109,239 · App. 07/490,022
Inter pen offset determination and compensation in multi-pen ink jet printing systems
Inventors:
Keith E. Cobbs, Robert D. Haselby, William S. Osborne
Patented Case
View Patent ↗
Granted: Apr 28, 1992
Filed: Mar 7, 1990
Inventors
Keith E. Cobbs
Robert D. Haselby
William S. Osborne
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.