US5702208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid-locked block panel system
Assignee: T&B Structural Systems LLC
•
Filing: 1996-01-16
•
Granted: 1997-12-30
•
Expires: 2016-01-16
Abstract
Abstract Concrete blocks are formed with intersecting grooves in the underside thereof which assume aligned condition when the blocks are assembled into side by side relationship to form panels. Polymer or welded wire grids are received within the aligned grooves to hold the blocks in the panel configuration. The grids are held in elevated seated condition within the grooves during assembly of the blocks into the panel configuration. Stands or wire connectors may be provided for the latter purpose. In the preferred embodiment the blocks are L-shaped and formed with passages extending therethrough and the grooves intersect these passages. Grout or fill may be placed within the passages of the assembled panels. In certain embodiments, the blocks may be disposed in side-by-side relationship and stacked to form retaining walls for earthen formations, with rods received within the grooves of the blocks to hold the blocks in alignment and the grids extending from the blocks to serve as soil reinforcements.
Inventors
- 👤 William K. Hilfiker
- 👤 Thomas P. Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:47
CPC Classifications
E; E02; E02D; E02D17/00; E02D17/20; E02D17/205; E02D29/00; E02D29/02; E02D29/0225; E02D29/025
Claims Analysis
Total Claims: 67
Claim 1
Independent Claim
95 words
A block for use in combination with a gridwork of intersecting elements which are engageable with the block to secure like blocks together in the construction of panels, said block comprising: a) a body having at least one open cell extending therethrough from top to bottom; and b) grooves formed in the bottom of said body and extending upwardly into the block, said grooves intersecting the open cell of the block and being proportioned for receipt of the intersecting elements whereby the elements may extend across and intersect within the open cell of the block.
Claim 2
Dependent Claim
95 words
A block for use in combination with a gridwork of intersecting elements which are engageable with the block to secure like blocks together in the construction of panels, said block comprising: a) a body having at least one open cell extending therethrough from top to bottom; and b) grooves formed in the bottom of said body and extending upwardly into the block, said grooves intersecting the open cell of the block and being proportioned for receipt of the intersecting elements whereby the elements may extend across and intersect within the open cell of the block.
Claim 3
Dependent Claim
48 words
A block according to claim 1 wherein: a) the block is of an L-shape viewed in plan and a plurality of open cells extend therethrough from top to bottom; b) the cells are separated by webs of the block; and, c) certain of the grooves extend across webs.
Claim 4
Dependent Claim
26 words
A block according to claim 1 wherein the grooves are of a depth extending approximately one-half the distance between the top and bottom of the block.
Claim 5
Dependent Claim
97 words
An assembly for forming concrete panels, said assembly comprising: a) a plurality of concrete blocks each having at least one open cell extending therethrough from top to bottom, grooves formed thereacross in intersecting relationship to said cell and a side wall complementally engageable with the side walk of another of said blocks; and, b) a gridwork having intersecting elements proportioned for receipt in said grooves and spaced to be received within the intersecting grooves of adjacent blocks when complementally engaged and to intersect within the open cells of the blocks to hold the blocks in such engagement.
Claim 6
Dependent Claim
97 words
An assembly for forming concrete panels, said assembly comprising: a) a plurality of concrete blocks each having at least one open cell extending therethrough from top to bottom, grooves formed thereacross in intersecting relationship to said cell and a side wall complementally engageable with the side walk of another of said blocks; and, b) a gridwork having intersecting elements proportioned for receipt in said grooves and spaced to be received within the intersecting grooves of adjacent blocks when complementally engaged and to intersect within the open cells of the blocks to hold the blocks in such engagement.
Claim 7
Dependent Claim
21 words
An assembly according to claim 4 wherein the grooves are formed in the bottom of and extend upwardly into the blocks.
Claim 8
Dependent Claim
26 words
An assembly according to claim 5, wherein the grooves are of a depth extending approximately one-half the distance between the top and bottom of the blocks.
Claim 9
Dependent Claim
53 words
An assembly according to claim 5, wherein: a) at least certain of the blocks are of an L-shape viewed in plan and a plurality of open cells extend therethrough from top to bottom; b) the cells are separated by webs of the block; and, c) certain of the grooves extend across the webs.
Claim 10
Dependent Claim
28 words
An assembly according to claim 5 further comprising a hanger engagable over the blocks and under the gridwork to hold the gridwork within the grooves of the blocks.
Claim 11
Independent Claim
111 words
A method of forming a panel comprised of concrete blocks, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of concrete blocks having voids extending therethrough from top to bottom and grooves formed in the bottom thereof in intersecting relationship to the voids, said grooves being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold the blocks in side-by-side relationship; c) supporting the gridwork in an elevated condition; and, d) assembling the blocks over the gridwork in side-by-side relationship to engage the intersecting elements of the gridwork within the grooves of the blocks with the elements intersecting within the voids.
Claim 12
Independent Claim
111 words
A method of forming a panel comprised of concrete blocks, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of concrete blocks having voids extending therethrough from top to bottom and grooves formed in the bottom thereof in intersecting relationship to the voids, said grooves being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold the blocks in side-by-side relationship; c) supporting the gridwork in an elevated condition; and, d) assembling the blocks over the gridwork in side-by-side relationship to engage the intersecting elements of the gridwork within the grooves of the blocks with the elements intersecting within the voids.
Claim 13
Dependent Claim
43 words
A method according to claim 9 further comprising extending a hanger over at least one of the blocks and into a cell to engage an intersecting element of the gridwork and hold the gridwork in elevated condition within the grooves of the blocks.
Claim 14
Dependent Claim
26 words
A method according to claim 9 further comprising grouting certain of the cells to hold the gridwork in elevated condition within the grooves of the blocks.
Claim 15
Independent Claim
103 words
A method of covering the surface of an earthen formation, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of blocks having intersecting grooves formed in and opening through one side thereof, said grooves extending across the blocks and being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) supporting the gridwork in spaced relationship to the surface of the earthen formation; and, d) assembling said blocks over the gridwork in side-by-side relationship to engage the intersecting grooves of the blocks with intersecting elements of the gridwork.
Claim 16
Independent Claim
103 words
A method of covering the surface of an earthen formation, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of blocks having intersecting grooves formed in and opening through one side thereof, said grooves extending across the blocks and being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) supporting the gridwork in spaced relationship to the surface of the earthen formation; and, d) assembling said blocks over the gridwork in side-by-side relationship to engage the intersecting grooves of the blocks with intersecting elements of the gridwork.
Claim 17
Dependent Claim
44 words
A method according to claim 12 further comprising: a) covering the surface of the earthen formation with drain material before supporting the gridwork in spaced relationship thereto; and, b) supporting the blocks on said drain material upon assembly of the blocks over the gridwork.
Claim 18
Dependent Claim
81 words
A method according to claim 12 wherein: a) the surface of the earthen formation takes the form of a channel having a generally flat bottom portion and an outwardly divergent generally flat side portion; b) the gridwork is comprised of bottom and side portions which are supported, respectively, in spaced generally parallel relationship to the bottom and side portions of the channel; and, c) the blocks are assembled over the bottom and side portions of the gridwork to line the channel.
Claim 19
Dependent Claim
46 words
A method according to claim 14 further comprising: a) covering the bottom and side portions of the channel with drain material before supporting the gridwork in spaced relationship thereto; and, b) supporting the blocks on said drain material upon assembly of the blocks over the gridwork.
Claim 20
Independent Claim
173 words
A method of covering the surface of an earthen formation, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of blocks having intersecting grooves formed in and opening through one side thereof, said grooves extending across the blocks and being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) supporting the gridwork in an elevated condition; d) assembling said blocks over the gridwork in side-by-side relationship to engage the intersecting grooves of the blocks with intersecting elements of the gridwork and form a panel comprised of blocks held together by the gridwork; e) lifting the panel to an elevated condition by engaging spaced portions of the gridwork with hoisting elements and elevating said elements; and, f) moving the panel while in the elevated condition to the situs of the earthen formation and depositing the panel to support the blocks on the formation with the gridwork disposed in spaced generally parallel relationship to the surface of the formation.
Claim 21
Independent Claim
173 words
A method of covering the surface of an earthen formation, said method comprising: a) providing a gridwork comprised of intersecting elements; b) providing a plurality of blocks having intersecting grooves formed in and opening through one side thereof, said grooves extending across the blocks and being proportioned and arranged for complemental receipt of intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) supporting the gridwork in an elevated condition; d) assembling said blocks over the gridwork in side-by-side relationship to engage the intersecting grooves of the blocks with intersecting elements of the gridwork and form a panel comprised of blocks held together by the gridwork; e) lifting the panel to an elevated condition by engaging spaced portions of the gridwork with hoisting elements and elevating said elements; and, f) moving the panel while in the elevated condition to the situs of the earthen formation and depositing the panel to support the blocks on the formation with the gridwork disposed in spaced generally parallel relationship to the surface of the formation.
Claim 22
Dependent Claim
61 words
A concrete block panel comprising: a) a gridwork having intersecting elements; b) means supporting said gridwork in a suspended condition; c) a plurality of concrete blocks supported on the gridwork, said blocks having intersecting grooves opening through and extending across one side thereof, said intersecting grooves being engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 23
Dependent Claim
61 words
A concrete block panel comprising: a) a gridwork having intersecting elements; b) means supporting said gridwork in a suspended condition; c) a plurality of concrete blocks supported on the gridwork, said blocks having intersecting grooves opening through and extending across one side thereof, said intersecting grooves being engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 24
Dependent Claim
41 words
A panel according to claim 17, wherein: a) the blocks have cells extending therethrough from top to bottom and the grooves extend across the blocks in intersecting relationship to the cells; and, b) elements of the gridwork intersect within the cells.
Claim 25
Dependent Claim
44 words
A panel according to claim 18, further comprising a hanger extending over at least one of the blocks and into a cell and engagement with an intersecting element of the gridwork to hold the gridwork in elevated condition within the grooves of the blocks.
Claim 26
Dependent Claim
53 words
A panel according to claim 17 wherein: a) at least certain of the blocks are of an L-shape viewed in plan and a plurality of open cells extend therethrough from top to bottom; b) the cells are separated by webs of the block; and, c) certain of the grooves extend across the webs.
Claim 27
Dependent Claim
21 words
A panel according to claim 17 wherein the grooves are formed in the bottom of and extend upwardly into the blocks.
Claim 28
Dependent Claim
26 words
A panel according to claim 21 wherein the grooves are of a depth extending approximately one-half the distance between the top and bottom of the blocks.
Claim 29
Dependent Claim
85 words
A panel according to claim 17 wherein reinforcing bars are secured to and extend upwardly from the panel, the panel further comprising subpanels stacked on top of said panel and received over said reinforcing bars, each sub-panel comprising: a) a second gridwork having intersecting elements; b) means supporting second gridwork in a suspended condition; c) a plurality of second concrete blocks supported on the second gridwork, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 30
Dependent Claim
60 words
An assembly for lining an earthen formation, said assembly comprising:, a) a gridwork of intersecting elements, said gridwork being supported in spaced generally parallel relationship to the earthen formation; and, b) a plurality of concrete blocks supported on the earthen formation, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 31
Dependent Claim
60 words
An assembly for lining an earthen formation, said assembly comprising:, a) a gridwork of intersecting elements, said gridwork being supported in spaced generally parallel relationship to the earthen formation; and, b) a plurality of concrete blocks supported on the earthen formation, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 32
Dependent Claim
41 words
An assembly according to claim 24, wherein: a) the blocks have cells extending therethrough from top to bottom and the grooves extend across the blocks in intersecting relationship to the cells; and, b) elements of the gridwork intersect within the cells.
Claim 33
Dependent Claim
44 words
An assembly according to claim 25, further comprising a hanger extending over at least one of the blocks and into a cell and engagement with an intersecting element of the gridwork to hold the gridwork in elevated condition within the grooves of the blocks.
Claim 34
Dependent Claim
53 words
An assembly according to claim 24, wherein: a) at least certain of the blocks are of an L-shape viewed in plan and a plurality of open cells extend therethrough from top to bottom; b) the cells are separated by webs of the block; and, c) certain of the grooves extend across the webs.
Claim 35
Dependent Claim
21 words
An assembly according to claim 24 wherein the grooves are formed in the bottom of and extend upwardly into the blocks.
Claim 36
Dependent Claim
26 words
An assembly according to claim 28, wherein the grooves are of a depth extending approximately one-half the distance between the top and bottom of the blocks.
Claim 37
Dependent Claim
141 words
An assembly for retaining an upstanding portion of an earthen formation and covering a base portion of the formation at the foot of the upstanding portion, said assembly comprising: a) a gridwork of intersecting elements, said gridwork being supported in spaced generally parallel relationship to the base portion of the earthen formation; and, b) a first plurality of concrete blocks supported on the base portion of the earthen formation, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) a second plurality of concrete blocks stacked upon one another and extending over the upstanding portion of the earthen formation, said second plurality of blocks being supported on the first plurality of blocks; and, d) means securing the second plurality of blocks against displacement relative to the upstanding portion of the formation.
Claim 38
Dependent Claim
141 words
An assembly for retaining an upstanding portion of an earthen formation and covering a base portion of the formation at the foot of the upstanding portion, said assembly comprising: a) a gridwork of intersecting elements, said gridwork being supported in spaced generally parallel relationship to the base portion of the earthen formation; and, b) a first plurality of concrete blocks supported on the base portion of the earthen formation, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship; c) a second plurality of concrete blocks stacked upon one another and extending over the upstanding portion of the earthen formation, said second plurality of blocks being supported on the first plurality of blocks; and, d) means securing the second plurality of blocks against displacement relative to the upstanding portion of the formation.
Claim 39
Dependent Claim
78 words
An assembly according to claim 30 wherein: a) the second plurality of blocks have intersecting grooves formed therein; and, b) the means securing the second plurality of blocks against displacement relative to the formation comprise reinforcing mats having intersecting elements complemental with the intersecting grooves of the second plurality of blocks, said mats having proximal portions with intersecting elements engaged within the intersecting grooves of the second plurality of blocks and distal portions extending toward the earthen formation.
Claim 40
Dependent Claim
34 words
An assembly according to claim 30 further comprising drain material disposed between the earthen formation and the first and second plurality of blocks, said first plurality of blocks resting on the drain material therebeneath.
Claim 41
Dependent Claim
82 words
An assembly according to claim 30 wherein the upstanding portion of the earthen formation terminates in a surface and is capped with an assembly comprising: a) a gridwork of intersecting elements, said gridwork being supported in spaced generally parallel relationship to said surface of the earthen formation; and, b) a third plurality of concrete blocks supported on said surface of the earthen formation, said blocks having intersecting grooves engaged over the intersecting elements of the gridwork to hold blocks in side-by-side relationship.
Claim 42
Independent Claim
137 words
A method of constructing a retaining wall for an earthen formation, said method comprising: a) providing a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves; b) assembling said blocks in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned; c) providing gridworks having paired longitudinal elements engageable within the second grooves of adjacent blocks disposed in side-by-side relationship and a cross-element engageable within the first grooves of said adjacent blocks; d) engaging said gridworks with the assembled blocks so as to extend from said one side thereof into the earthen formation with the paired longitudinal elements engaged-within the second grooves of adjacent blocks and the cross-element engaged within the first grooves of said adjacent blocks.
Claim 43
Independent Claim
137 words
A method of constructing a retaining wall for an earthen formation, said method comprising: a) providing a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves; b) assembling said blocks in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned; c) providing gridworks having paired longitudinal elements engageable within the second grooves of adjacent blocks disposed in side-by-side relationship and a cross-element engageable within the first grooves of said adjacent blocks; d) engaging said gridworks with the assembled blocks so as to extend from said one side thereof into the earthen formation with the paired longitudinal elements engaged-within the second grooves of adjacent blocks and the cross-element engaged within the first grooves of said adjacent blocks.
Claim 44
Dependent Claim
22 words
A method according to claim 34, further comprising extending a bar across the first grooves of adjacent blocks to span the blocks.
Claim 45
Dependent Claim
54 words
A method according to claim 35 wherein the concrete blocks have open cells extending therethrough from top to bottom and the first and second grooves intersect the cells, said method further comprising filling at least certain of the cells with a medium to hold the gridworks and bar in place within the first grooves.
Claim 46
Dependent Claim
24 words
A method according to claim 35 wherein the bar is disposed to engage the gridwork and resist pullout of the gridwork from the blocks.
Claim 47
Dependent Claim
31 words
A method according to claim 34 wherein the longitudinal elements define a plane therebetween and are formed with bent-up end portions which carry the cross-element and extend out of said plane.
Claim 48
Dependent Claim
38 words
A method according to claim 38 further comprising extending a bar across the first grooves of adjacent blocks to one side of said bent-up ends to resist pull-out of the gridwork from the blocks and span the blocks.
Claim 49
Dependent Claim
119 words
A retaining wall for an earthen formation, said wall comprising: a) a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, said blocks being assembled in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; and, b) gridworks having paired longitudinal elements engaged within the second grooves of adjacent blocks disposed in side-by-side relationship and a cross-element fixed between said longitudinal elements and engaged within the first grooves of said adjacent blocks to span the blocks, said gridworks extending from said one side of the blocks and into the earthen formation.
Claim 50
Dependent Claim
119 words
A retaining wall for an earthen formation, said wall comprising: a) a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, said blocks being assembled in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; and, b) gridworks having paired longitudinal elements engaged within the second grooves of adjacent blocks disposed in side-by-side relationship and a cross-element fixed between said longitudinal elements and engaged within the first grooves of said adjacent blocks to span the blocks, said gridworks extending from said one side of the blocks and into the earthen formation.
Claim 51
Dependent Claim
23 words
A retaining wall according to claim 40, further comprising a bar extending across the first grooves of adjacent blocks to span the blocks.
Claim 52
Dependent Claim
56 words
A retaining wall according to claim 41 wherein the concrete blocks have open cells extending therethrough from top to bottom and the first and second grooves intersect the cells, said wall further comprising a fill means disposed within at least certain of the cells to hold the gridwork and bar in place within the first grooves.
Claim 53
Dependent Claim
25 words
A retaining wall according to claim 41 wherein the bar is disposed to engage the gridwork and resist pullout of the gridwork from the blocks.
Claim 54
Dependent Claim
32 words
A retaining wall according to claim 40 wherein the longitudinal elements define a plane therebetween and are formed with bent-up end portions which carry the cross-element and extend out of said plane.
Claim 55
Dependent Claim
39 words
A retaining wall according to claim 44 further comprising a bar extending across the first grooves of adjacent blocks to one side of said bent-up ends to resist pull-out of the gridwork from the blocks and span the blocks.
Claim 56
Dependent Claim
124 words
A retaining wall for an earthen formation, said wall comprising: a) a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, said blocks being assembled in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; b) a gridwork having paired longitudinal elements engaged within the second grooves of one of the blocks and a cross-element fixed between said longitudinal elements and engaged within the first groove of said one block, said gridwork extending into the earthen formation; and, c) a bar received within and extending across the first grooves of adjacent blocks to span the blocks.
Claim 57
Dependent Claim
124 words
A retaining wall for an earthen formation, said wall comprising: a) a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, said blocks being assembled in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; b) a gridwork having paired longitudinal elements engaged within the second grooves of one of the blocks and a cross-element fixed between said longitudinal elements and engaged within the first groove of said one block, said gridwork extending into the earthen formation; and, c) a bar received within and extending across the first grooves of adjacent blocks to span the blocks.
Claim 58
Dependent Claim
25 words
A retaining wall according to claim 46 wherein the bar is disposed to engage the gridwork and resist pullout of the gridwork from the blocks.
Claim 59
Dependent Claim
32 words
A retaining wall according to claim 46 wherein the longitudinal elements define a plane therebetween and are formed with bent-up end portions which carry the cross-element and extend out of said plane.
Claim 60
Dependent Claim
24 words
A retaining wall according to claim 48 wherein the bar engages the bent up portions to resist pullout of the gridwork from the blocks.
Claim 61
Dependent Claim
56 words
A retaining wall according to claim 46 wherein the concrete blocks have open cells extending therethrough from top to bottom and the first and second grooves intersect the cells, said wall further comprising a fill means disposed within at least certain of the cells to hold the gridwork and bar in place within the first grooves.
Claim 62
Independent Claim
161 words
A method of retaining an earthen formation, said method comprising: a) providing a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, b) assembling said blocks in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; c) providing a gridwork having paired longitudinal elements engageable within the second grooves of the blocks and a cross-element fixed between said longitudinal elements and engageable within the first grooves of said blocks; d) engaging the gridwork with one of the assembled blocks so as to extend from said one side thereof into the earthen formation with the paired longitudinal elements engaged within the second grooves of said one block and the cross-element engaged within the first groove of said one block; c) extending a bar across the first grooves of adjacent blocks to span the blocks.
Claim 63
Independent Claim
161 words
A method of retaining an earthen formation, said method comprising: a) providing a plurality of concrete blocks having first grooves extending thereacross and second grooves extending through one side thereof in intersecting relationship to said first grooves, b) assembling said blocks in front of the formation in side-by-side relationship with the first grooves of adjacent blocks aligned and said one side facing the formation; c) providing a gridwork having paired longitudinal elements engageable within the second grooves of the blocks and a cross-element fixed between said longitudinal elements and engageable within the first grooves of said blocks; d) engaging the gridwork with one of the assembled blocks so as to extend from said one side thereof into the earthen formation with the paired longitudinal elements engaged within the second grooves of said one block and the cross-element engaged within the first groove of said one block; c) extending a bar across the first grooves of adjacent blocks to span the blocks.
Claim 64
Dependent Claim
24 words
A method according to claim 51 wherein the bar is disposed to engage the gridwork and resist pullout of the gridwork from the blocks.
Claim 65
Dependent Claim
31 words
A method according to claim 51 wherein the longitudinal elements define a plane therebetween and are formed with bent-up end portions which carry the cross-element and extend out of said plane.
Claim 66
Dependent Claim
23 words
A method according to claim 53 wherein the bar engages the bent up portions to resist pullout of the gridwork from the blocks.
Claim 67
Dependent Claim
54 words
A method according to claim 51 wherein the concrete blocks have open cells extending therethrough from top to bottom and the first and second grooves intersect the cells, said method further comprising filling at least certain of the cells with a medium to hold the gridwork and bar in place within the first grooves.
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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) | 2000-12-29 | 2001-06-30 | 2001-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-29 | 2005-06-30 | 2005-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-29 | 2009-06-30 | 2009-12-30 | $7700.00 | Window Closed / Lapsed |