Granted Patent
Utility
US 6,819,972 · App. 09/653,997
Material surface processing with a laser that has a scan modulated effective power to achieve multiple worn looks
Inventors:
Clarence Martin, Darryl J. Costin, Jr.
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Sep 1, 2000
Inventors
Clarence Martin
Darryl J. Costin, Jr.
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.