Granted Patent
Utility
US 4,265,552 · App. 06/000,234
Ribbon drive mechanism for high speed printer
Inventors:
John D. Bemis, Willie Goff, Jr.
Patented Case
View Patent ↗
Granted: May 5, 1981
Filed: Jan 2, 1979
Inventors
John D. Bemis
Willie Goff, Jr.
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.