Granted Patent
Utility
US 4,219,823 · App. 06/075,911
Image inclination control for bi-directional ink jet printers
Inventors:
Rex D. Fathergill, Alvin L. Wittwer
Patented Case
View Patent ↗
Granted: Aug 26, 1980
Filed: Sep 17, 1979
Inventors
Rex D. Fathergill
Alvin L. Wittwer
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.