Hydraulic and earth engineering – Drainage or irrigation – Porous or apertured pipe – flume – or tileway
Reexamination Certificate
2008-04-01
2008-04-01
Lagman, Frederick L. (Department: 3672)
Hydraulic and earth engineering
Drainage or irrigation
Porous or apertured pipe, flume, or tileway
C405S043000, C405S044000, C405S046000, C405S049000
Reexamination Certificate
active
11353016
ABSTRACT:
A leaching device having slots to frictionally engage soil to permit the introduction of water through the slots and into the soil while prohibiting the excessive passage of soil particles through the slots. A method of introducing water into soil by passing water through slots that frictionally engage soil to permit water to pass through the slots and which prohibits the excessive passing of soil particles through the slots.
REFERENCES:
patent: 980442 (1911-01-01), Schlafly
patent: 3830373 (1974-08-01), Sixt
patent: 4182580 (1980-01-01), Hieda et al.
patent: 4523613 (1985-06-01), Fouss et al.
patent: 4759661 (1988-07-01), Nichols et al.
patent: 5498104 (1996-03-01), Gray
patent: 5511903 (1996-04-01), Nichols et al.
patent: 5556231 (1996-09-01), Sidaway et al.
patent: 5669733 (1997-09-01), Daly et al.
patent: 6461078 (2002-10-01), Presby
patent: 6612777 (2003-09-01), Maestro
patent: 6679653 (2004-01-01), DiTullio
patent: 6698975 (2004-03-01), Benecke
patent: 2005/0074287 (2005-04-01), Brochu et al.
Lagman Frederick L.
Pillsbury Winthrop Shaw & Pittman LLP
LandOfFree
Leaching system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Leaching system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leaching system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3922100