Granted Patent
Utility
US 5,966,848 · App. 08/980,751
Tooth of ore recovery buckets
Inventors:
Carlos Alberto De Sampaio Monteiro, Jr., Severino Almeida Neto, Manoel Damas Torres
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Dec 1, 1997
Inventors
Carlos Alberto De Sampaio Monteiro, Jr.
Severino Almeida Neto
Manoel Damas Torres
Assignee (at issue)
Companhia Vale do Rio Doce
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.