Granted Patent
Utility
US 6,574,025 · App. 10/067,736
Optical switching by controllable frustration of total internal reflection
Inventors:
Lorne A. Whitehead, Robin John Noel Coope, Andrzej Kotlicki
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Feb 8, 2002
Inventors
Lorne A. Whitehead
Robin John Noel Coope
Andrzej Kotlicki
Assignee (at issue)
THE UNIVERSITY OF BRITISH COLUMBIA
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.