Surface water drainage system
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United States of America Patent
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Apr 28, 2009
Grant Date -
Jul 20, 2006
app pub date -
Jun 24, 2004
filing date -
Jun 25, 2003
priority date (Note) -
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Abstract
A surface water drainage system according to the present invention includes a structure that can be installed in the ground, and a cover that can be laid onto an upper edge of the structure. Fixation devices that are attached to the cover include a locking system in a form of elastic hook elements fixed to edges of the cover that can be brought into snap-on engagement with other locking system on the structure in order to retain the cover on the structure.
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