Granted Patent
Utility
US 6,609,718 · App. 10/202,206
Seal for casting in a concrete wall of a fluid distribution system container
Inventor:
Norman W. Gavin
Patented Case
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Granted: Aug 26, 2003
Filed: Jul 24, 2002
Inventor
Norman W. Gavin
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.