Granted Patent
Utility
US 6,569,923 · App. 09/528,336
Polymer-cement composites and methods of making same
Inventor:
John Thomas Slagter
Patented Case
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Granted: May 27, 2003
Filed: Mar 17, 2000
Inventor
John Thomas Slagter
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.