Compound pavement stone
November 30, 2012. 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 ReferencesSurfaces produced by interlocking members Paving block Paving block Paving stone Paving stone Interlocking paving stone and ground cover formed thereof Paving block arrangement for laying a paving-set arc assembly Guttered paving blocks Modular locking floor covering Paving block InventorAssigneeApplicationNo. 982852 filed on 11/30/1992US Classes:404/41, Interfitting404/38, Integral404/42PatternedExaminersPrimary: Dorner, Kenneth J.Assistant: Mulcare, Nancy Attorney, Agent or FirmForeign Patent References
International ClassE01C 005/00AbstractThe side surfaces of compound stones are provided with relatively flat elements which interlock with little play when said stones are laid out, while adjoining side surfaces of neighboring stones are in contact along two lines only. A compromise between a sufficient mutual securement of the stones and a certain mutual mobility thereof is thus obtained. In particular, a certain tilting of neighboring stones with respect to each other is possible, whereby it is possible to produce pavements in uneven places.Field of SearchBlocksModules or blocks (preformed) With separate interlocking member Interfitting Patterned OPAQUE STONELIKE MODULE Discrete clip-gripping facing sheet Lateral retaining feature on facing sheet Terminal flanges Elongated reinforcing Dissimilar material edging Slab type with integral ribs With integral spacing projections Particularly related to adjacent module Nonrectangular cross-section | |
