Granted Patent
Utility
US 4,519,072 · App. 06/440,690
Answer supervision system
Inventors:
William Fechalos, Joseph Michael DeMarco
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Nov 10, 1982
Inventors
William Fechalos
Joseph Michael DeMarco
Assignee (at issue)
Rockwell International 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.