Patent US4508770A successfully refreshed from Google Patents.
US4508770A
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Road repair material of knitted unidirectional glass roving mat coated with elastomeric modified asphalt
Assignee: Owens Corning Fiberglas Technology Inc
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Filing: 1984-03-19
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Granted: 1985-04-02
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Expires: 2004-03-19
Abstract
Abstract A knitted unidirectional mat of glass rovings, factory coated with elastomeric modified asphalt, is used to reinforce a crack in an old road before applying a new layer of asphalt-based pavement.
Inventors
- 👤 John W. Muncaster
- 👤 Michael G. Roberts
- 👤 R. David Rowlett
- 👤 Todd B. Hoitink
- 👤 William E. Uffner
- 👤 Robert N. White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:54
CPC Classifications
E; E01; E01C; E01C11/00; E01C11/005; Y; Y10; Y10T; Y10T428/00; Y10T428/20; Y10T428/31504; Y10T428/31815; Y10T442/00; Y10T442/20; Y10T442/2926; Y10T442/2992
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
18 words
A knitted unidirectional mat of glass rovings factory coated with elastomeric modified asphalt, for use in road repairing.
Claim 2
Dependent Claim
18 words
A knitted unidirectional mat of glass rovings factory coated with elastomeric modified asphalt, for use in road repairing.
Claim 3
Independent Claim
74 words
A method of repairing a crack in an old road before application of a new layer of asphalt-based pavement, the method comprising applying hot liquid elastomeric modified asphalt on the old road on opposite sides of the crack, and applying a knitted unidirectional mat of glass rovings, factory coated with elastomeric modified asphalt, over the elastomeric modified asphalt on the road, with the main or stronger glass rovings extending substantially crosswise of the crack.
Claim 4
Independent Claim
74 words
A method of repairing a crack in an old road before application of a new layer of asphalt-based pavement, the method comprising applying hot liquid elastomeric modified asphalt on the old road on opposite sides of the crack, and applying a knitted unidirectional mat of glass rovings, factory coated with elastomeric modified asphalt, over the elastomeric modified asphalt on the road, with the main or stronger glass rovings extending substantially crosswise of the crack.
References Cited (Backward Citations)
US3930100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-01 | 1988-10-01 | 1989-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-01 | 1992-10-01 | 1993-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-01 | 1996-10-01 | 1997-04-02 | $7700.00 | Window Closed / Lapsed |