Granted Patent
Utility
US 6,264,470 · App. 08/909,664
Apparatus and method for measuring the color of teeth
Inventors:
Wayne D. Jung, Russell W. Jung, Alan R. Loudermilk
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Aug 12, 1997
Inventors
Wayne D. Jung
Russell W. Jung
Alan R. Loudermilk
Assignee (at issue)
LJ Laboratories LLC
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.