Granted Patent
Utility
US 6,818,299 · App. 10/360,964
Multi-layered magnetic pigments and foils
Inventors:
Roger W. Phillips, Charlotte R. LaGallee, Charles T. Markantes, Paul G. Coombs
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Feb 7, 2003
Inventors
Roger W. Phillips
Charlotte R. LaGallee
Charles T. Markantes
Paul G. Coombs
Assignee (at issue)
Flex Products, Inc.
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.