Granted Patent
Utility
US 5,599,530 · App. 08/357,946
Surface treated pigments
Inventors:
Anjali Patil, Joseph Calello, Robert Sandewicz
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Dec 16, 1994
Inventors
Anjali Patil
Joseph Calello
Robert Sandewicz
Assignee (at issue)
Revlon Consumer Products 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.