Granted Patent
Utility
US 5,969,754 · App. 08/762,599
Contrast enhancing illuminator
Inventor:
Herbert D. Zeman
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Dec 9, 1996
Inventor
Herbert D. Zeman
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.