Hydraulic and earth engineering – Drainage or irrigation – Having regulation of flow through channel
Reexamination Certificate
2006-05-30
2006-05-30
Lee, Jong-Suk (James) (Department: 3673)
Hydraulic and earth engineering
Drainage or irrigation
Having regulation of flow through channel
C405S036000, C405S041000, C405S048000, C405S052000, C404S002000, C404S005000, C210S163000, C210S170050
Reexamination Certificate
active
07052207
ABSTRACT:
An erosion control basin is a molded open topped receptacle that has support flanges that will support the basin on the interior of a storm drain grate frame. A filter is formed around an upright perforated drain pipe that is on the interior of the basin and which opens to an outlet. The basin catches debris and silt but permits water to drain out. The top of the drainpipe is left open for overflow purposes.
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Wimco Road Drain Brochure; page labeled p. 2 identified as “Road Drain Top Slab” illustrates a product that is admitted prior art and disclosure published undated.
Lee Jong-Suk (James)
Westman Champlin & Kelly P.A.
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