Transmission mode 1.06 .mu.M photocathode for night vision having an indium gallium arsenide active layer and an aluminum gallium azsenide window layer

Granted: Apr 9, 1996 Filed: Jul 29, 1994

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.