Granted Patent
Utility
US 6,824,854 · App. 10/207,630
Carpets treated for soil resistance
Inventors:
Joyce Monson Materniak, Peter Michael Murphy
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Jul 29, 2002
Inventors
Joyce Monson Materniak
Peter Michael Murphy
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.