Granted Patent
Utility
US 4,867,583 · App. 06/581,899
Dot matrix printer/module using print wires having different lenth but equal mass
Inventors:
Paul W. Caulier, Leon C. Johenning, II
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Feb 21, 1984
Inventors
Paul W. Caulier
Leon C. Johenning, II
Assignee (at issue)
Genicom Corp.
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.