Granted Patent
Utility
US 3,955,878 · App. 05/549,730
Fiber optic transmission line
Inventor:
Gerhard Nowak
Patented Case
View Patent ↗
Granted: May 11, 1976
Filed: Feb 13, 1975
Inventor
Gerhard Nowak
Assignee (at issue)
International Telephone and Telegraph 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.