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Class Information
Number: 40/548
Name: Card, picture, or sign exhibiting > Illuminated sign > Polarized
Description: Sign wherein the light rays from the source of illumination pass through a polarizer which acts to direct the light rays in a definite direction or filter out light rays from a definite direction.

Patents under this class:

Patent Number Title Of Patent Date Issued
7841730 Light source device and crystal display device Nov. 30, 2010
7559660 Restricted access display system Jul. 14, 2009
7486007 Flat panel display device Feb. 3, 2009
7369294 Ornamental display device May. 6, 2008
7214118 Rotatable disk illuminated picture board with disk offset engaging and orienting structures May. 8, 2007
6800012 Picture board with array of individually pivotable color transmission members and pigment sheet and method Oct. 5, 2004
6269565 Display device Aug. 7, 2001
6032393 Rotatable peg illuminated picture board Mar. 7, 2000
5591508 Coating methods and compositions for production of digitized stereoscopic polarizing images Jan. 7, 1997
3973388 Liquid crystal display cell Aug. 10, 1976
3971928 Display system Jul. 27, 1976

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