Granted Patent
Utility
US 6,235,702 · App. 09/194,410
Aqueous nacreous lustre concentrate
Inventors:
Achim Ansmann, Rolf Kawa, Stefan Podubrin, Alfred Westfechtel
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Mar 31, 1999
Inventors
Achim Ansmann
Rolf Kawa
Stefan Podubrin
Alfred Westfechtel
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.