Granted Patent
Utility
US 6,521,036 · App. 09/743,791
OPTICALLY VARIABLE PIGMENTS PROVIDING A COLOR SHIFT BETWEEN TWO DISTINCT COLORS, COATING COMPOSITION COMPRISING THE SAME, METHOD FOR PRODUCING THE SAME AND SUBSTRATE COATED WITH THE COATING COMPOSITION
Inventors:
Anton Bleikolm, Olivier Rozumek, Edgar Müller
Patented Case
View Patent ↗
Granted: Feb 18, 2003
Filed: Feb 20, 2001
Inventors
Anton Bleikolm
Olivier Rozumek
Edgar Müller
Assignee (at issue)
SICPA HOLDING SA
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.