Granted Patent
Utility
US 4,385,384 · App. 06/265,175
Modem diagnostic and control system
Inventors:
Arthur H. Rosbury, Judson T. Gilbert, Donald O'Connor, Grant A. Newland
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: May 19, 1981
Inventors
Arthur H. Rosbury
Judson T. Gilbert
Donald O'Connor
Grant A. Newland
Assignee (at issue)
Racal Data Communications, Inc.
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.