Granted Patent
Utility
US 4,372,697 · App. 06/276,285
Ribbon drive arrangement for a printer
Inventor:
David H. Babcock
Patented Case
View Patent ↗
Granted: Feb 8, 1983
Filed: Jun 22, 1981
Inventor
David H. Babcock
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.