Granted Patent
Utility
US 6,210,159 · App. 09/497,464
System and methods for analyzing tooth shades
Inventors:
Maryann Lehmann, Perry Youngs, Adrian Larkin
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Feb 3, 2000
Inventors
Maryann Lehmann
Perry Youngs
Adrian Larkin
Assignee (at issue)
Shade Analyzing Technologies, Inc.
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.