Granted Patent
Utility
US 4,408,908 · App. 06/218,228
Ribbon feed system for a matrix printer
Inventors:
Steven L. Applegate, James J. Molloy
Patented Case
View Patent ↗
Granted: Oct 11, 1983
Filed: Dec 19, 1980
Inventors
Steven L. Applegate
James J. Molloy
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.