Granted Patent
Utility
US 4,482,980 · App. 06/373,918
Hybrid optical/electrical data highway
Inventors:
Simon Korowitz, Francis E. McMenamin
Patented Case
View Patent ↗
Granted: Nov 13, 1984
Filed: May 3, 1982
Inventors
Simon Korowitz
Francis E. McMenamin
Assignee (at issue)
Federal Signal 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.