Granted Patent
Utility
US 6,676,776 · App. 10/223,971
14-karat gold alloy compositions having enhanced yellow color, reversible hardness, and fine grain structure
Inventors:
Dwarika P. Agarwal, Grigory Raykhtsaum
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Aug 20, 2002
Inventors
Dwarika P. Agarwal
Grigory Raykhtsaum
Assignee (at issue)
LEACHGARNER, 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.