Granted Patent
Utility
US 5,203,896 · App. 07/862,446
Process for producing hard plastic clad optical fiber with improved ultraviolet transmission
Inventor:
Wolfgang Neuberger
Patented Case
View Patent ↗
Granted: Apr 20, 1993
Filed: Apr 2, 1992
Inventor
Wolfgang Neuberger
Assignee (at issue)
CeramOptec GmbH
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.