Granted Patent
Utility
US 6,567,171 · App. 09/542,260
Digital densitometer with controlled light emitter
Inventor:
Allen J. Rushing
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: Apr 3, 2000
Inventor
Allen J. Rushing
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.