Granted Patent
Utility
US 4,501,021 · App. 06/373,916
Fiber optic data highway
Inventor:
Edward L. Weiss
Patented Case
View Patent ↗
Granted: Feb 19, 1985
Filed: May 3, 1982
Inventor
Edward L. Weiss
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.