Granted Patent
Utility
US 6,488,764 · App. 09/950,756
Cement composition with polymeric latexes prepared in the presence of amps seed
Inventor:
Ira John Westerman
Patented Case
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Granted: Dec 3, 2002
Filed: Sep 11, 2001
Inventor
Ira John Westerman
Assignee (at issue)
Omnova Solutions, Inc.
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.