Granted Patent
Utility
US 6,150,022 · App. 09/207,121
Bright metal flake based pigments
Inventors:
Kent E. Coulter, Thomas Mayer, Roger W. Phillips, John S. Matteucci
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Dec 7, 1998
Inventors
Kent E. Coulter
Thomas Mayer
Roger W. Phillips
John S. Matteucci
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.