Granted Patent
Utility
US 5,989,596 · App. 08/906,471
Compositions comprising a depigmenting agent consisting of sulfites and metabisulfites and plant extracts for use in inhibiting melanogenesis or for depigmenting
Inventors:
Delphine Bresson-Rival, Eric Perrier
Patented Case
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Granted: Nov 23, 1999
Filed: Aug 5, 1997
Inventors
Delphine Bresson-Rival
Eric Perrier
Assignee (at issue)
Coletica
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.