Granted Patent
Utility
US 4,687,293 · App. 06/813,789
Metal-encased light conductor
Inventor:
Matthew Randazzo
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Dec 27, 1985
Inventor
Matthew Randazzo
Assignee (at issue)
Conax Buffalo 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.