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US Patent 6485226 - Flexible plastic curb
US Patent Issued on November 26, 2002
Estimated Patent Expiration Date:
April 18, 2022Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
April 18, 2022Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA method of employing a safe and effective flexible plastic curb and gutter. The method of installing a curb along the side of a road having a lower layer prior to laying a top layer of asphalt on the road comprises providing elongated curb strips each having i) a horizontal holding side portion having spaced openings cut therealong; and, ii) a uniformly continuous upright trough portion having a lower edge portion continuously attached to the outer edge of the horizontal side portion. An upper edge portion of the upright trough portion is adapted to extend above the upper layer of asphalt so that water running off the road is channelled along an inner side of the upright trough portion. The horizontal holding side portion of the elongated strip is seated along and parallel to an outside edge portion of the lower layer so when the top layer of asphalt is laid thereon adhesion between the layers through the openings therethrough hold the elongate curb strip in position. | InventorApplicationNo. 124018 filed on 04/18/2002US Classes:404/7, Curb404/10, Yielding404/11Distinct biasing means recessed in roadwayField of Search404/2, DRAIN OR GUTTER404/4, Street or curb inlet for surface drainage404/6, TRAFFIC STEERING DEVICE OR BARRIER404/7, Curb404/8, With rim or edge protector404/9, TRAFFIC DIRECTOR404/10, Yielding404/11, Distinct biasing means recessed in roadway404/72, PROCESS404/73, Handling or treating preformed modular unit404/18Combined sheet and preformed moduleExaminersPrimary: Will, Thomas B.Assistant: Pechhold, Alexandra K. Attorney, Agent or FirmUS Patent References3957383, Curb protection device and methodIssued on: 05/18/1976 Inventor: Fredericks4863307, Restraint edge for paving members Issued on: 09/05/1989 Inventor: Jones5217319, Metal tactile edge-warning strip Issued on: 06/08/1993 Inventor: Klohn5377447, Landscape edging apparatus and method Issued on: 01/03/1995 Inventor: Fritch5640801, Landscape border divider Issued on: 06/24/1997 Inventor: Rynberk5694723, Apparatus and method for water drainage and radon removal Issued on: 12/09/1997 Inventor: Parker5769562, Edge restraint apparatus having variable length sections Issued on: 06/23/1998 Inventor: Jones5771643, Concrete slab-wall spacer with water and radon removal features Issued on: 06/30/1998 Inventor: Parker6030144, Edging resistant system for paving blocks Issued on: 02/29/2000 Inventor: Cannella6099201, Pavement edging Issued on: 08/08/2000 Inventor: Abbrancati6379078Method and apparatus for providing an edging structure for pavement Issued on: 04/30/2002 Inventor: Zwier International ClassesE01C 011/22E01F 009/04 |
