Granted Patent
Utility
US 4,439,007 · App. 06/271,957
Low dispersion single mode fiber
Inventors:
Paul D. Lazay, Paul J. Lemaire, Arthur D. Pearson
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Jun 9, 1981
Inventors
Paul D. Lazay
Paul J. Lemaire
Arthur D. Pearson
Assignee (at issue)
Bell Telephone Laboratories, Inc.
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.