Granted Patent
Utility
US 4,556,953 · App. 06/351,718
Interchangeable interface circuitry arrangements for use with a data processing system
Inventors:
A. Ronald Caprio, John P. Cyr, Bernard O. Geaghan, Paul C. Kotschenreuther, David J. Schanin, Ronald M. Salett
Patented Case
View Patent ↗
Granted: Dec 3, 1985
Filed: Feb 24, 1982
Inventors
A. Ronald Caprio
John P. Cyr
Bernard O. Geaghan
Paul C. Kotschenreuther
David J. Schanin
Ronald M. Salett
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.