Granted Patent
Utility
US 6,426,821 · App. 09/544,482
Optical upconverter apparatuses, methods and systems
Inventors:
Alistair J. Price, Thomas D. Stephens
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Apr 7, 2000
Inventors
Alistair J. Price
Thomas D. Stephens
Assignee (at issue)
Corvis 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.