Granted Patent
Utility
US 4,467,976 · App. 06/432,585
Ribbon cartridge comprising a stuffer box intermediate a supply reel and take-up reel
Inventors:
Francis W. Bogaczyk, Richard C. Croll, Billy D. Purcell, Edward E. Toutant
Patented Case
View Patent ↗
Granted: Aug 28, 1984
Filed: Oct 4, 1982
Inventors
Francis W. Bogaczyk
Richard C. Croll
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.