Patent US4222916A successfully refreshed from Google Patents.
US4222916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubberized coal tar pitch emulsion
Assignee: Kop Coat Inc
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Filing: 1978-10-30
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Granted: 1980-09-16
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Expires: 1998-10-30
Abstract
Abstract A protective coating for bituminous paving surfaces is disclosed, which coating is comprised of a coal tar emulsion, water, and sufficient acrylate emulsion to provide a desired viscosity. Sand may be added to the composition to improve surface traction of coated bituminous surface.
Inventors
- 👤 P. Richard Hergenrother
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:07
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31815
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
39 words
A protective coating composition for bituminous paving surfaces made by mixing coal tar emulsion, water in a volume amount equal to 1/2 to 11/2 the volume of coal tar emulsion, and sufficient butylacrylate emulsion to maintain the composition thixo-tropic.
Claim 2
Dependent Claim
39 words
A protective coating composition for bituminous paving surfaces made by mixing coal tar emulsion, water in a volume amount equal to 1/2 to 11/2 the volume of coal tar emulsion, and sufficient butylacrylate emulsion to maintain the composition thixo-tropic.
Claim 3
Dependent Claim
18 words
The composition as in claim 1 including from 1-6 pounds of sand per gallon of protective coating compositions.
Claim 4
Dependent Claim
18 words
The composition as in claim 1 including from 2-4 pounds of sand per gallon of protective coating composition.
Claim 5
Dependent Claim
44 words
A protective coating composition for bituminous surfaces comprising (a) a coal tar emulsion; (b) from 1/2 to 11/2 parts by volume of water based on the volume of coal tar emulsion; (c) a butylacrylate emulsion in an amount sufficient to make the composition thixo-tropic.
Claim 6
Dependent Claim
44 words
A protective coating composition for bituminous surfaces comprising (a) a coal tar emulsion; (b) from 1/2 to 11/2 parts by volume of water based on the volume of coal tar emulsion; (c) a butylacrylate emulsion in an amount sufficient to make the composition thixo-tropic.
Claim 7
Dependent Claim
18 words
The composition as in claim 4 including from 1-6 pounds of sand per gallon of protective coating composition.
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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |