Granted Patent
Utility
US 6,432,192 · App. 09/510,777
Process for manufacturing pigments
Inventors:
Wayne Lee Cook, Douglas P. Gebler, Norman E. Pratt
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Feb 23, 2000
Inventors
Wayne Lee Cook
Douglas P. Gebler
Norman E. Pratt
Assignee (at issue)
Flint Ink Corporation
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.