Granted Patent
Utility
US 6,423,246 · App. 09/546,040
Thermostable pigments, films and effect coatings, and mixtures for their production
Inventors:
Michael Kasch, Jurgen Kupfer, Franz-Heinrich Kreuzer
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Apr 10, 2000
Inventors
Michael Kasch
Jurgen Kupfer
Franz-Heinrich Kreuzer
Assignee (at issue)
Consortium für elektrochemische Industrie GmbH
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.