Granted Patent
Utility
US 5,779,949 · App. 08/689,837
Conversion of lead-contaminated soil into ceramic products
Inventors:
Glenn Mason, Edward Bryan
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Aug 14, 1996
Inventors
Glenn Mason
Edward Bryan
Assignee (at issue)
THE TRUSTEES OF INDIANA UNIVERSITY
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.