Composite paving structures and laying units therefor
Patent 4016692 Issued on April 12, 1977. Estimated Expiration Date: 
April 12, 1994. 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.
April 12, 1994. 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 1700542 1740110 1828193 1853824 1895801 3304673 InventorsAssigneeApplicationNo. 05/571520 filed on 04/25/1975US Classes:52/314, Facer formed to simulate multiple units52/591.2, Multiple, finite keys (e.g, perpendicular sawtooth)52/604, Particularly related to adjacent moduleD25/113Construction block or brick type (20)ExaminersPrimary: Faw, Price C. Jr.Assistant: Friedman, Carl D. Attorney, Agent or FirmForeign Application Priority Data1972-10-20 DTAbstractThe invention relates to a composite paving structure consisting of elements forming a pattern. The structure is made up of laying units each of which has a group of elements adjoining at their respective peripheries and held together by predetermined rupture zones. Supplementing stones are disposed at the boundaries of adjacent units. The stones have one or more elements and extend, in each case, into recesses in both of two adjacent units. Preferably, the stones are of one shape and the pattern is a herringbone pattern. The units may be offset relative to one another in the herringbone pattern. | |
