Hydraulic and earth engineering – Drainage or irrigation – Porous waterway – e.g. – sand drain – etc.
Reexamination Certificate
2006-03-21
2006-03-21
Lagman, Frederick L. (Department: 3673)
Hydraulic and earth engineering
Drainage or irrigation
Porous waterway, e.g., sand drain, etc.
C405S043000, C405S036000, C052S169500
Reexamination Certificate
active
07014390
ABSTRACT:
A drainage member for use in promoting the drainage of water away from a substrate positioned adjacent the drainage member which includes an elongated, longitudinally extending base formed of a flexible material and having a plurality of outwardly extending projections. The projections are spaced from one another to form drainage channels between the projections. The elongated base has a plurality of expansion zones formed of the flexible material and extending generally transversely of the longitudinal extent thereof, the expansion zones comprising a deformation of the flexible material that absorbs longitudinal expansion of such material when it is exposed to heat without any significant increase in the longitudinal length of the drainage member.
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Advertisement from ProGreen Sports Surfaces, LLC entitled “Total Turf Technology, Typical Prodrain™ Edge Detail and Base Cross-Section”, ©2002.
Advertisement from ProGreen Sports Surfaces, LLC entitled “Total Turf Technology, Typical Cross-Section”, ©2003.
Brochure from Pro Green Sport Surfaces, LLC entitled “Total Turf Technology Since 1987, Replicated Grass ProGreen Since 1987,” ©2003, 8 pages.
Brochure from Advanced Polymer Technology, POLIGRAS®, Sports Technology International, 6 pages.
Brochure from FieldTurf Inc., FIELDTURF, The Company That Revolutionzed An Industry , 8 pages.
Brochure from Field Turf Inc., FIELDTURF, Looks like grass . . . , Feels like grass . . . Plays like grass.™, 2 pages.
Brochure from Akzo Nobel Geosynthetics Company, ENKATURF™, Turf Maintenance System, 4 pages.
American Wick Drain Corporation
Kennedy Covington Lobdell & Hickman LLP
Lagman Frederick L.
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