Granted Patent
Utility
US 5,220,320 · App. 07/831,731
Switch matrix including both B switching elements and crossbar switch matrices
Inventors:
Francois T. Assal, John V. Evans, Christoph E. Mahle, Amir I. Zaghloul, Ramesh Gupta
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Feb 10, 1992
Inventors
Francois T. Assal
John V. Evans
Christoph E. Mahle
Amir I. Zaghloul
Ramesh Gupta
Assignee (at issue)
Comsat, 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.