Granted Patent
Utility
US 6,519,390 · App. 09/731,399
Chirped Bragg grating reflectors and adjustable dispersion apparatus incorporating such gratings
Inventors:
Julian Andrew John Fells, Richard E. Epworth
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Dec 6, 2000
Inventors
Julian Andrew John Fells
Richard E. Epworth
Assignee (at issue)
Nortel Networks Limited
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.