US4699542A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for reinforcing asphaltic roads and reinforced roads using the same
Assignee: Saint Gobain Adfors America Inc
•
Filing: 1985-07-08
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Granted: 1987-10-13
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Expires: 2005-07-08
Abstract
Abstract A reinforcing semi-rigid, resin impregnated continuous filament fiberglass grid is incorporated into a paved road or surface to provide increased strength and resistance to cracking.
Inventors
- 👤 Roy Shoesmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:35
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/16; E01C11/165; E01C11/005; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
130 words
A process for reinforcing roadways in which (a) an underlying layer of pavement is covered by an asphaltic tack coat, (b) an impregnated, semi-rigid, open, elongated grid consisting essentially of two sets of parallel, straight continuous filament fiberglass strands, one set extending lengthwise and one set extending crosswise with respect to the elongated direction of the composite, is laid on top of the tack coat oriented such that the lengthwise set of parallel strands is parallel to the direction of the roadway, said strands being fixedly connected at their intersections before the composite is impregnated, and said impregnating material having been applied to the grid before the grid is placed on the underlying layer of pavement, and (c) a layer of asphaltic mixture is spread on top of the grid.
Claim 2
Dependent Claim
130 words
A process for reinforcing roadways in which (a) an underlying layer of pavement is covered by an asphaltic tack coat, (b) an impregnated, semi-rigid, open, elongated grid consisting essentially of two sets of parallel, straight continuous filament fiberglass strands, one set extending lengthwise and one set extending crosswise with respect to the elongated direction of the composite, is laid on top of the tack coat oriented such that the lengthwise set of parallel strands is parallel to the direction of the roadway, said strands being fixedly connected at their intersections before the composite is impregnated, and said impregnating material having been applied to the grid before the grid is placed on the underlying layer of pavement, and (c) a layer of asphaltic mixture is spread on top of the grid.
Claim 3
Dependent Claim
17 words
The process of claim 1 in which the grid is made by a warp-knit, weft-insertion knitting method.
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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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |