Granted Patent
Utility
US 6,681,537 · App. 10/026,733
Process for the implementation of civil engineering works, swimming pools and water tanks in particular, and means for its implementation
Inventor:
Joel Queirel
Patented Case
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Granted: Jan 27, 2004
Filed: Dec 27, 2001
Inventor
Joel Queirel
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.