US5251997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embeddable paving block intended for the surfacing of roadways and other areas of ground and the roadways or other areas of ground which are surfaced with such paving blocks
Assignee: Individual
•
Filing: 1991-11-14
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Granted: 1993-10-12
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Expires: 2011-11-14
Abstract
Abstract The embeddable paving block intended for surfacing roadways and other areas of ground, of the type including four identical arms disposed at right-angles to one another, each of the arms having shoulders distributed over the lateral faces and the ends of each of these arms, the shoulders being disposed to overlap in the plane of the surfacing the corresponding shoulders on the adjacent blocks in order to prevent the plane from opening up under the effect of any traction and in order to ensure a constant thickness of the joints.
Inventors
- 👤 Jean-Jacques Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:15
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/20; E02D17/205; E01; E01C; E01C5/00; E01C9/00; E01C9/004; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/14; E01C2201/00; E01C2201/02; E01C2201/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
249 words
A paving block adapted for disposition in adjacent relationship to at least one identical block to form a paved surface overlying a surface to be paved, said paving block comprising: a body having a cruciform shape and centered on a vertical axis, said body being formed with a top surface and a bottom surface and being provided with four rectilinear arms of the same length and width and angularly equispaced about said axis, each of said arms being formed with: a respective pair of parallel identical lateral faces extending between said top and bottom surfaces, a respective end face bridging the pair of lateral faces and extending between said top and bottom surfaces, said end face meeting said lateral faces along a respective pair of vertical edges, and a plurality of ribs formed on said lateral and end faces and extending substantially parallel to said axis from said bottom surface and terminating short of said top surface, each of said faces being provided with at least one respective rib of said plurality of ribs spaced from a respective one of said vertical edges and protruding from the respective face of one of the paving blocks toward a corresponding face of an adjacent identical block formed with respective ribs so that ribs on the lateral faces of one block abut end faces of another block and said ribs of adjoining faces of said blocks are mutually offset and spaced from one another upon said blocks forming a single surface pattern.
Claim 2
Dependent Claim
249 words
A paving block adapted for disposition in adjacent relationship to at least one identical block to form a paved surface overlying a surface to be paved, said paving block comprising: a body having a cruciform shape and centered on a vertical axis, said body being formed with a top surface and a bottom surface and being provided with four rectilinear arms of the same length and width and angularly equispaced about said axis, each of said arms being formed with: a respective pair of parallel identical lateral faces extending between said top and bottom surfaces, a respective end face bridging the pair of lateral faces and extending between said top and bottom surfaces, said end face meeting said lateral faces along a respective pair of vertical edges, and a plurality of ribs formed on said lateral and end faces and extending substantially parallel to said axis from said bottom surface and terminating short of said top surface, each of said faces being provided with at least one respective rib of said plurality of ribs spaced from a respective one of said vertical edges and protruding from the respective face of one of the paving blocks toward a corresponding face of an adjacent identical block formed with respective ribs so that ribs on the lateral faces of one block abut end faces of another block and said ribs of adjoining faces of said blocks are mutually offset and spaced from one another upon said blocks forming a single surface pattern.
Claim 3
Dependent Claim
50 words
The paving block defined in claim 1 wherein each of said end faces is provided with a respective pair of said ribs, each one of said ribs being spaced from a respective one of the vertical edges at a distance substantially less than a distance between said pair of ribs.
Claim 4
Dependent Claim
15 words
The paving block defined in claim 1 wherein said top surface is provided with grooves.
Claim 5
Dependent Claim
21 words
The paving block defined in claim 1 wherein said end face is twice as wide as each of the lateral faces.
Claim 6
Dependent Claim
46 words
The paving block defined in claim 1 wherein the overlapping ribs of corresponding faces of the one and adjacent blocks are spaced apart at a small distance upon forming the surface pattern, each of said ribs being formed of a width greater than said small distance.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-11 | 1997-04-12 | 1997-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-11 | 2001-04-12 | 2001-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-11 | 2005-04-12 | 2005-10-12 | $7700.00 | Window Closed / Lapsed |