Granted Patent
Utility
US 6,825,971 · App. 10/325,978
Technique and apparatus for frequency conversion in an optical network
Inventors:
Abel Dasylva, Delfin Y. Montuno, Prasad Kodaypak, Pia Sindile, Zhonghui Yao
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Dec 23, 2002
Inventors
Abel Dasylva
Delfin Y. Montuno
Prasad Kodaypak
Pia Sindile
Zhonghui Yao
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.