Granted Patent
Utility
US 5,670,137 · App. 08/354,908
Anhydrous dentifrice composition
Inventor:
Jean-Marc Ascione
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Dec 12, 1994
Inventor
Jean-Marc Ascione
Assignee (at issue)
L'OREAL
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.