Paving block
Patent 6939077 Issued on September 6, 2005. Estimated Expiration Date: 
June 10, 2019. Estimated 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.
June 10, 2019. Estimated 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.Patent References 126171 149658 310662 572762 1417010 3722162 Set of paving stones, particularly set of concrete paving stones Fracture-free layered paving blocks Storage system for solid waste material Movable surface paving apparatus and method for using the same InventorAssigneeApplicationNo. 09719256 filed on 06/10/1999US Classes:404/39, Bevel or incline edge404/34, Modules or blocks (preformed)404/36, Foraminous traffic surface404/31, Plural layers52/608, Nonrectangular cross-section404/28, Having preformed element layer405/43, Porous or apertured pipe, flume, or tileway405/35Spaced membersExaminersPrimary: Will, Thomas B.Assistant: Addie, Raymond W Attorney, Agent or FirmForeign Patent References
International ClassesE01C005/06E01C011/22 E01C005/06 AbstractThere is disclosed a paving block for use in the construction of a paved surface, which paving block has a top surface, a bottom surface and at least one lateral surface extending between the top and bottom surfaces and abutting in use at least part of a lateral surface of at least one adjacent paving block, wherein a portion of the lateral surface of the paving block adjacent to the top surface is tapered. | |
