Granted Patent
Utility
US 4,283,213 · App. 06/086,856
Method of fabrication of single mode optical fibers or waveguides
Inventors:
Francis I. Akers, Mokhtar S. Maklad
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Oct 22, 1979
Inventors
Francis I. Akers
Mokhtar S. Maklad
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.