Granted Patent
Utility
US 6,177,486 · App. 09/063,247
Lamellar pigment particle dispersion
Inventor:
Russell L. Ferguson
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Apr 20, 1998
Inventor
Russell L. Ferguson
Assignee (at issue)
Silberline Manufacturing Co., 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.