Granted Patent
Utility
US 4,475,829 · App. 06/259,136
Capacitive metering means for uniform ribbon feed and take-up mechanism
Inventors:
Willie Goff, Jr., Errol R. Williams
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: Apr 30, 1981
Inventors
Willie Goff, Jr.
Errol R. Williams
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.