Granted Patent
Utility
US 6,517,603 · App. 09/811,428
Method for recovery of metals having low vaporization temperature
Inventors:
Marcos de Albuquerque Contrucci, Pedro Henrique Carpinetti Costa, Edmar Saul Marcheze
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Mar 20, 2001
Inventors
Marcos de Albuquerque Contrucci
Pedro Henrique Carpinetti Costa
Edmar Saul Marcheze
Assignee (at issue)
Startec Iron LLC
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.