Granted Patent
Utility
US 4,650,356 · App. 06/617,423
Ribbon cartridge motion control with a non-concentric drive
Inventors:
Billy D. Purcell, Edward E. Toutant
Patented Case
View Patent ↗
Granted: Mar 17, 1987
Filed: Jun 5, 1984
Inventors
Billy D. Purcell
Edward E. Toutant
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.