Granted Patent
Utility
US 5,942,152 · App. 08/775,354
Bleach systems comprising bis- and tris(.mu.-oxo)dimanganese complex salts
Inventors:
Ahmed M. Tafesh, Matthias Beller, Vera Friderichs, Gerd Reinhardt
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Jan 3, 1997
Inventors
Ahmed M. Tafesh
Matthias Beller
Vera Friderichs
Gerd Reinhardt
Assignee (at issue)
Aventis Research & Technologies GmbH & Co.
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.