Granted Patent
Utility
US 4,247,214 · App. 05/958,856
Character position control for a matrix printer
Inventor:
William O. Swan
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Nov 8, 1978
Inventor
William O. Swan
Assignee (at issue)
NCR 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.