Granted Patent
Utility
US 6,652,829 · App. 09/928,972
Continuous calcination of mixed metal oxides
Inventors:
Raymond E. Barnes, Richard A. Pipoly, Ivan H. Joyce, Javier Garcia Sainz
Patented Case
View Patent ↗
Granted: Nov 25, 2003
Filed: Aug 13, 2001
Inventors
Raymond E. Barnes
Richard A. Pipoly
Ivan H. Joyce
Javier Garcia Sainz
Assignee (at issue)
Ferro 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.