Granted Patent
Utility
US 5,858,052 · App. 08/934,375
Manufacture of fluoride glass fibers with phosphate coatings
Inventors:
Nonna Kopylov, Ahmet Refik Kortan
Patented Case
View Patent ↗
Granted: Jan 12, 1999
Filed: Sep 19, 1997
Inventors
Nonna Kopylov
Ahmet Refik Kortan
Assignee (at issue)
LUCENT TECHNOLOGIES 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.