Granted Patent
Utility
US 6,515,065 · App. 08/913,380
Protective colloids
Inventors:
Carsten Baumann, Dieter Feustel, Norbert Huebner
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Sep 11, 1997
Inventors
Carsten Baumann
Dieter Feustel
Norbert Huebner
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.