Granted Patent
Utility
US 4,229,749 · App. 06/023,813
Ink drop compensation based on print-data blocks
Inventor:
Gary L. Fillmore
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: Mar 26, 1979
Inventor
Gary L. Fillmore
Assignee (at issue)
International Business Machines Corporation
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.