Granted Patent
Utility
US 6,830,657 · App. 10/019,161
Hydrophobic cationic dispersions stabilized by low molecular weight maleimide copolymers, for paper sizing
Inventors:
Isabelle Betremieux, Christophe Dumousseaux, Bruno Feret, Jean-Jacques Flat
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Mar 1, 2002
Inventors
Isabelle Betremieux
Christophe Dumousseaux
Bruno Feret
Jean-Jacques Flat
Assignee (at issue)
Atofina
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.