Granted Patent
Utility
US 6,273,571 · App. 09/410,098
Display architectures using an electronically controlled optical retarder stack
Inventors:
Gary D. Sharp, Kristina M. Johnson
Patented Case
View Patent ↗
Granted: Aug 14, 2001
Filed: Oct 1, 1999
Inventors
Gary D. Sharp
Kristina M. Johnson
Assignee (at issue)
COLOR INK, INC.
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.