Granted Patent
Utility
US 4,683,564 · App. 06/443,193
Matrix switch system
Inventors:
Gladstone F. Young, Richard F. Green, S. David Miller, Thomas J. Quinlan, III
Patented Case
View Patent ↗
Granted: Jul 28, 1987
Filed: Nov 22, 1982
Inventors
Gladstone F. Young
Richard F. Green
S. David Miller
Thomas J. Quinlan, III
Assignee (at issue)
Data Switch 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.