Granted Patent
Utility
US 6,331,202 · App. 09/380,782
Anti-corrosive pigments
Inventor:
Gregory Pipko
Patented Case
View Patent ↗
Granted: Dec 18, 2001
Filed: Jan 27, 2000
Inventor
Gregory Pipko
Assignee (at issue)
Pigmentan Anticorrosive Pigments for Paints Ltd.
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.