Granted Patent
Utility
US 4,240,757 · App. 05/972,800
Fanfold replacement ribbon package
Inventor:
Samuel Y. Hanna
Patented Case
View Patent ↗
Granted: Dec 23, 1980
Filed: Dec 26, 1978
Inventor
Samuel Y. Hanna
Assignee (at issue)
Centronics Data Computer 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.