Granted Patent
Utility
US 6,646,427 · App. 10/138,196
Determination of chloride corrosion threshold for metals embedded in cementitious material
Inventors:
David Trejo, David R. Miller
Patented Case
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Granted: Nov 11, 2003
Filed: May 1, 2002
Inventors
David Trejo
David R. Miller
Assignees (at issue)
MMFX Steel Corporation of America
THE TEXAS A&M UNIVERSITY SYSTEM
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.