Granted Patent
Utility
US 4,632,582 · App. 06/704,257
Ribbon feed mechanism providing a constant relative velocity between ribbon and print head
Inventor:
Eric Houston
Patented Case
View Patent ↗
Granted: Dec 30, 1986
Filed: Feb 22, 1985
Inventor
Eric Houston
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.