Granted Patent
Utility
US 6,708,729 · App. 10/098,972
Fiber reinforced composite liner for lining an existing conduit and method of manufacture
Inventor:
E. Peter Smith
Patented Case
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Granted: Mar 23, 2004
Filed: Mar 14, 2002
Inventor
E. Peter Smith
Assignee (at issue)
Instituform B.V.
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.