Underdrain assembly and method of manufacturing the same
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United States of America Patent
Stats
-
Apr 26, 2016
Issued Date -
N/A
app pub date -
May 29, 2014
filing date -
May 29, 2013
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An underdrain apparatus and a method for manufacturing such apparatus are provided. The underdrain apparatus can be extruded in long sections as a unitary part. The underdrain apparatus may be extruded in various sizes, shapes, and materials. Further, the underdrain apparatus may include a passageway for transporting water to and from the filter media and/or air to the filter media. In some embodiments, apertures are formed in the underdrain apparatus during an extrusion process to provide a path between the passageway and the filter media.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- E03B Class
- 115 Applications Filed
- 96 Patents Issued To-Date
- 83.48 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 5 Citation Count
- E03B Class
- 12.50 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 26, 2027 |
