ELECTRICALLY CONTROLLABLE SYSTEM HAVING A SEPARATE FUNCTIONAL COMPONENT FOR CONTROLLING LIGHT TRANSMISSION THAT INCLUDES AT LEAST ONE TRANSPARENT LAYER SLOWING PHOTO REDUCTION DEGRADATION OF AN ACTIVE ELEMENT

Granted: Nov 26, 2002 Filed: Jun 9, 1999

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.