Granted Patent
Utility
US 5,660,573 · App. 08/515,873
Electroluminescent lamp with controlled field intensity for displaying graphics
Inventor:
James H. Butt
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Aug 16, 1995
Inventor
James H. Butt
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.