Granted Patent
Utility
US 4,859,023 · App. 06/304,203
Sheathed optical fiber cable
Inventors:
Bernard R. Eichenbaum, Manuel R. Santana
Patented Case
View Patent ↗
Granted: Aug 22, 1989
Filed: Sep 21, 1981
Inventors
Bernard R. Eichenbaum
Manuel R. Santana
Assignee (at issue)
American Telephone and Telegraph Company, AT&T Bell Laboratories
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.