Granted Patent
Utility
US 6,437,921 · App. 09/928,730
Total internal reflection prismatically interleaved reflective film display screen
Inventor:
Lorne A. Whitehead
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Aug 14, 2001
Inventor
Lorne A. Whitehead
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.