Granted Patent
Utility
US 4,953,155 · App. 07/146,062
Current summed optoelectronic crossbar switch
Inventors:
Gregory L. Tangonan, Vincent L. Jones, Stephen R. Forrest
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Jan 20, 1988
Inventors
Gregory L. Tangonan
Vincent L. Jones
Stephen R. Forrest
Assignee (at issue)
Hughes Aircraft Company
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.