Granted Patent
Utility
US 5,882,786 · App. 08/751,098
Gemstones formed of silicon carbide with diamond coating
Inventors:
Kurt Nassau, Thomas G. Coleman, Charles Eric Hunter
Patented Case
View Patent ↗
Granted: Mar 16, 1999
Filed: Nov 15, 1996
Inventors
Kurt Nassau
Thomas G. Coleman
Charles Eric Hunter
Assignee (at issue)
C3 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.